diff --git a/gitlab.py b/gitlab.py
index 9ac179cea..50f429e8e 100644
--- a/gitlab.py
+++ b/gitlab.py
@@ -468,7 +468,7 @@ def _sanitize(value):
 
 
 def _sanitize_dict(src):
-    return {k: _sanitize(v) for k, v in src.items()}
+    return dict((k, _sanitize(v)) for k, v in src.items())
 
 
 class GitlabObject(object):