diff --git a/plugins/modules/ipadelegation.py b/plugins/modules/ipadelegation.py
index e30d3d7008..c0bab6c60f 100644
--- a/plugins/modules/ipadelegation.py
+++ b/plugins/modules/ipadelegation.py
@@ -124,7 +124,7 @@
 
 
 from ansible.module_utils.ansible_freeipa_module import \
-    IPAAnsibleModule, compare_args_ipa
+    IPAAnsibleModule, compare_args_ipa, CaseInsensitive
 
 
 def find_delegation(module, name):
@@ -180,10 +180,10 @@ def main():
     names = ansible_module.params_get("name")
 
     # present
-    permission = ansible_module.params_get("permission")
-    attribute = ansible_module.params_get("attribute")
+    permission = ansible_module.params_get_lowercase("permission")
+    attribute = ansible_module.params_get_lowercase("attribute")
     membergroup = ansible_module.params_get("membergroup")
-    group = ansible_module.params_get("group")
+    group = ansible_module.params_get_lowercase("group")
     action = ansible_module.params_get("action")
     # state
     state = ansible_module.params_get("state")
@@ -248,8 +248,10 @@ def main():
                         # For all settings is args, check if there are
                         # different settings in the find result.
                         # If yes: modify
-                        if not compare_args_ipa(ansible_module, args,
-                                                res_find):
+                        if not compare_args_ipa(
+                            ansible_module, args, res_find,
+                            arg_conv={"memberof": CaseInsensitive()}
+                        ):
                             commands.append([name, "delegation_mod", args])
                     else:
                         commands.append([name, "delegation_add", args])
diff --git a/tests/delegation/test_delegation_member_case_insensitive.yml b/tests/delegation/test_delegation_member_case_insensitive.yml
new file mode 100644
index 0000000000..39ed68b167
--- /dev/null
+++ b/tests/delegation/test_delegation_member_case_insensitive.yml
@@ -0,0 +1,203 @@
+---
+- name: Test delegation
+  hosts: "{{ ipa_test_host | default('ipaserver') }}"
+  become: no
+  gather_facts: no
+
+  tasks:
+  - name: Test delegation, and ensure cleanup is executed in case of an error
+    block:
+      # CLEANUP TEST ITEMS
+
+      - name: Ensure delegation "basic manager attributes" is absent
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          state: absent
+
+      # CREATE TEST ITEMS
+
+      - name: Ensure test group managers is present
+        ipagroup:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: managers
+
+      - name: Ensure test group employees is present
+        ipagroup:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: employees
+
+      # TESTS
+
+      - name: Ensure delegation "basic manager attributes" is present, with mixed case attributes
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: Read
+          attribute:
+          - BusinessCategory
+          group: Managers
+          membergroup: Employees
+        register: result
+        failed_when: not result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, group lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: Read
+          attribute:
+          - BusinessCategory
+          group: "{{ 'Managers' | lower }}"
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, group uppercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: Read
+          attribute:
+          - BusinessCategory
+          group: "{{ 'Managers' | upper }}"
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, permission uppercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: "{{ 'read' | upper }}"
+          attribute:
+          - BusinessCategory
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, permission lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: "{{ 'Read' | lower }}"
+          attribute:
+          - BusinessCategory
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, attribute uppercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - "{{ 'BusinessCategory' | upper }}"
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, attribute lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - "{{ 'BusinessCategory' | lower }}"
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      # membergroup uses case insensitive comparison, but is case preserving.
+
+      - name: Ensure delegation "basic manager attributes" is present, membergroup lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: managers
+          membergroup: "{{ 'Employees' | lower }}"
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, membergroup uppercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: managers
+          membergroup: "{{ 'Employees' | upper }}"
+        register: result
+        failed_when: result.changed or result.failed
+
+      # tests for action: member
+      - name: Ensure delegation "basic manager attributes" is present, attribute mixed case
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - BusinessCategory
+          group: managers
+          membergroup: employees
+
+      - name: Ensure delegation "basic manager attributes" member is present, attribute uppercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          attribute:
+          - "{{ 'BusinessCategory' | upper }}"
+          action: member
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" member is present, attribute lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          attribute:
+          - "{{ 'BusinessCategory' | lower }}"
+          action: member
+        register: result
+        failed_when: result.changed or result.failed
+
+    always:
+      # CLEANUP TEST ITEMS
+
+      - name: Ensure delegation "basic manager attributes" is absent
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          state: absent
+
+      - name: Ensure test groups are absent
+        ipagroup:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: managers,employees
+          state: absent