diff --git a/src/spaceone/inventory/manager/cloud_functions/function_gen2_manager.py b/src/spaceone/inventory/manager/cloud_functions/function_gen2_manager.py
index 056e63f..05428c0 100644
--- a/src/spaceone/inventory/manager/cloud_functions/function_gen2_manager.py
+++ b/src/spaceone/inventory/manager/cloud_functions/function_gen2_manager.py
@@ -280,13 +280,13 @@ def _make_timeout(timeout):
     @staticmethod
     def _make_memory_allocated(memory):
         try:
-            number, unit = memory.split("Mi")
+            number, *unit = memory.split("Mi")
             return f"{number} MiB"
         except ValueError:
-            number, unit = memory.split("M")
+            number, *unit = memory.split("M")
             return f"{number} MiB"
         except Exception:
-            number, unit = memory.split("Gi")
+            number, *unit = memory.split("Gi")
             return f"{number} GiB"
 
     @staticmethod