diff --git a/openedx/features/content_type_gating/models.py b/openedx/features/content_type_gating/models.py
index f69d1fc0cc..11c9fe03e0 100644
--- a/openedx/features/content_type_gating/models.py
+++ b/openedx/features/content_type_gating/models.py
@@ -129,4 +129,8 @@ class ContentTypeGatingConfig(StackedConfigurationModel):
         return bool(self.enabled and self.enabled_as_of <= target_date)
 
     def __str__(self):
-        return "ContentTypeGatingConfig(enabled={!r}, enabled_as_of={!r}, studio_override_enabled={!r})"
+        return "ContentTypeGatingConfig(enabled={!r}, enabled_as_of={!r}, studio_override_enabled={!r})".format(
+            self.enabled,
+            self.enabled_as_of,
+            self.studio_override_enabled,
+        )
diff --git a/openedx/features/course_duration_limits/models.py b/openedx/features/course_duration_limits/models.py
index 5364b96b19..368ab9b80a 100644
--- a/openedx/features/course_duration_limits/models.py
+++ b/openedx/features/course_duration_limits/models.py
@@ -120,4 +120,7 @@ class CourseDurationLimitConfig(StackedConfigurationModel):
         return bool(self.enabled and self.enabled_as_of <= target_date)
 
     def __str__(self):
-        return "CourseDurationLimits(enabled={!r}, enabled_as_of={!r})"
+        return "CourseDurationLimits(enabled={!r}, enabled_as_of={!r})".format(
+            self.enabled,
+            self.enabled_as_of,
+        )