diff --git a/glance/policies/base.py b/glance/policies/base.py
index 4013341ec9..5d27041f83 100644
--- a/glance/policies/base.py
+++ b/glance/policies/base.py
@@ -26,12 +26,12 @@ PROJECT_READER = 'role:reader and project_id:%(project_id)s'
 IMAGE_MEMBER_CHECK = 'project_id:%(member_id)s'
 # Check if the visibility of the image supplied in the target matches
 # "community"
-COMMUNITY_VISIBILITY_CHECK = '"community":%(visibility)s'
+COMMUNITY_VISIBILITY_CHECK = "'community':%(visibility)s"
 # Check if the visibility of the resource supplied in the target matches
 # "public"
-PUBLIC_VISIBILITY_CHECK = '"public":%(visibility)s'
+PUBLIC_VISIBILITY_CHECK = "'public':%(visibility)s"
 # Check if the visibility of the image supplied in the target matches "shared"
-SHARED_VISIBILITY_CHECK = '"shared":%(visibility)s'
+SHARED_VISIBILITY_CHECK = "'shared':%(visibility)s"
 
 PROJECT_MEMBER_OR_IMAGE_MEMBER_OR_COMMUNITY_OR_PUBLIC_OR_SHARED = (
     f'role:member and (project_id:%(project_id)s or {IMAGE_MEMBER_CHECK} '
diff --git a/glance/tests/unit/test_policy.py b/glance/tests/unit/test_policy.py
index bdfab871d5..5c52eedf8a 100644
--- a/glance/tests/unit/test_policy.py
+++ b/glance/tests/unit/test_policy.py
@@ -1088,9 +1088,9 @@ class TestDefaultPolicyCheckStrings(base.IsolatedUnitTest):
 
     def test_project_member_download_image_check_string(self):
         expected = (
-            'role:member and (project_id:%(project_id)s or '
-            'project_id:%(member_id)s or "community":%(visibility)s or '
-            '"public":%(visibility)s or "shared":%(visibility)s)'
+            "role:member and (project_id:%(project_id)s or "
+            "project_id:%(member_id)s or 'community':%(visibility)s or "
+            "'public':%(visibility)s or 'shared':%(visibility)s)"
         )
         self.assertEqual(
             expected,
@@ -1108,9 +1108,9 @@ class TestDefaultPolicyCheckStrings(base.IsolatedUnitTest):
 
     def test_project_reader_get_image_check_string(self):
         expected = (
-            'role:reader and (project_id:%(project_id)s or '
-            'project_id:%(member_id)s or "community":%(visibility)s or '
-            '"public":%(visibility)s or "shared":%(visibility)s)'
+            "role:reader and (project_id:%(project_id)s or "
+            "project_id:%(member_id)s or \'community\':%(visibility)s or "
+            "'public':%(visibility)s or 'shared':%(visibility)s)"
         )
         self.assertEqual(
             expected,