diff --git a/.travis.yml b/.travis.yml
index f436505..b68fe0d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,9 @@
 sudo: false
 language: python
+python:
+    - "2.7"
+    - "3.4"
+    - "3.5"
 install: pip install -r requirements-dev.txt .
 script:
     - make lint
diff --git a/testimony/__init__.py b/testimony/__init__.py
index 536d6b3..57b7655 100755
--- a/testimony/__init__.py
+++ b/testimony/__init__.py
@@ -277,7 +277,8 @@ def validate_docstring_report(testcases):
                 ))
                 invalid_tags_docstring_count += 1
             if issues:
-                result.setdefault(path, {})[testcase.name] = issues
+                result.setdefault(
+                    path, collections.OrderedDict())[testcase.name] = issues
                 invalid_docstring_count += 1
 
     if SETTINGS['json']: