diff --git a/endpoints/api/manifest.py b/endpoints/api/manifest.py
index f41cb58b5..0307ecaba 100644
--- a/endpoints/api/manifest.py
+++ b/endpoints/api/manifest.py
@@ -154,5 +154,5 @@ class ManageRepositoryManifestLabel(RepositoryParamResource):
     }
 
     log_action('manifest_label_delete', namespace, metadata, repo=tag_manifest.tag.repository)
-    return 'Deleted', 204
+    return '', 204
 
diff --git a/endpoints/api/organization.py b/endpoints/api/organization.py
index 3f9beb869..854451454 100644
--- a/endpoints/api/organization.py
+++ b/endpoints/api/organization.py
@@ -215,7 +215,7 @@ class Organization(ApiResource):
         raise NotFound()
 
       model.user.delete_user(org, all_queues)
-      return 'Deleted', 204
+      return '', 204
 
     raise Unauthorized()
 
@@ -380,7 +380,7 @@ class OrganizationMember(ApiResource):
 
       # Remove the user from the organization.
       model.organization.remove_organization_member(org, user)
-      return 'Deleted', 204
+      return '', 204
 
     raise Unauthorized()
 
@@ -616,7 +616,7 @@ class OrganizationApplicationResource(ApiResource):
       log_action('delete_application', orgname,
                  {'application_name': application.name, 'client_id': client_id})
 
-      return 'Deleted', 204
+      return '', 204
     raise Unauthorized()
 
 
diff --git a/endpoints/api/permission.py b/endpoints/api/permission.py
index 7dac02d71..f07d87b2f 100644
--- a/endpoints/api/permission.py
+++ b/endpoints/api/permission.py
@@ -212,7 +212,7 @@ class RepositoryUserPermission(RepositoryParamResource):
                {'username': username, 'repo': repository},
                repo=model.repository.get_repository(namespace, repository))
 
-    return 'Deleted', 204
+    return '', 204
 
 
 @resource('/v1/repository/<apirepopath:repository>/permissions/team/<teamname>')
@@ -278,4 +278,4 @@ class RepositoryTeamPermission(RepositoryParamResource):
                {'team': teamname, 'repo': repository},
                repo=model.repository.get_repository(namespace, repository))
 
-    return 'Deleted', 204
+    return '', 204
diff --git a/endpoints/api/prototype.py b/endpoints/api/prototype.py
index 24c661a26..f14458594 100644
--- a/endpoints/api/prototype.py
+++ b/endpoints/api/prototype.py
@@ -229,7 +229,7 @@ class PermissionPrototype(ApiResource):
 
       log_prototype_action('delete_prototype_permission', orgname, prototype)
 
-      return 'Deleted', 204
+      return '', 204
 
     raise Unauthorized()
 
diff --git a/endpoints/api/repository.py b/endpoints/api/repository.py
index 9557cb0e5..ec80269b1 100644
--- a/endpoints/api/repository.py
+++ b/endpoints/api/repository.py
@@ -363,7 +363,7 @@ class Repository(RepositoryParamResource):
 
     log_action('delete_repo', namespace,
                {'repo': repository, 'namespace': namespace})
-    return 'Deleted', 204
+    return '', 204
 
 
 @resource('/v1/repository/<apirepopath:repository>/changevisibility')
diff --git a/endpoints/api/repotoken.py b/endpoints/api/repotoken.py
index 53c060362..5ef427bf9 100644
--- a/endpoints/api/repotoken.py
+++ b/endpoints/api/repotoken.py
@@ -134,4 +134,4 @@ class RepositoryToken(RepositoryParamResource):
                 'code': code},
                repo=model.repository.get_repository(namespace, repository))
 
-    return 'Deleted', 204
+    return '', 204
diff --git a/endpoints/api/robot.py b/endpoints/api/robot.py
index f111ba17f..8f1cbde73 100644
--- a/endpoints/api/robot.py
+++ b/endpoints/api/robot.py
@@ -115,7 +115,7 @@ class UserRobot(ApiResource):
     parent = get_authenticated_user()
     model.user.delete_robot(format_robot_username(parent.username, robot_shortname))
     log_action('delete_robot', parent.username, {'robot': robot_shortname})
-    return 'Deleted', 204
+    return '', 204
 
 
 @resource('/v1/organization/<orgname>/robots')
@@ -178,7 +178,7 @@ class OrgRobot(ApiResource):
     if permission.can():
       model.user.delete_robot(format_robot_username(orgname, robot_shortname))
       log_action('delete_robot', orgname, {'robot': robot_shortname})
-      return 'Deleted', 204
+      return '', 204
 
     raise Unauthorized()
 
diff --git a/endpoints/api/superuser.py b/endpoints/api/superuser.py
index 4f5a77749..cdb12ca98 100644
--- a/endpoints/api/superuser.py
+++ b/endpoints/api/superuser.py
@@ -369,7 +369,7 @@ class SuperUserManagement(ApiResource):
         abort(403)
 
       model.user.delete_user(user, all_queues, force=True)
-      return 'Deleted', 204
+      return '', 204
 
     abort(403)
 
@@ -503,7 +503,7 @@ class SuperUserOrganizationManagement(ApiResource):
       org = model.organization.get_organization(name)
 
       model.user.delete_user(org, all_queues)
-      return 'Deleted', 204
+      return '', 204
 
     abort(403)
 
diff --git a/endpoints/api/tag.py b/endpoints/api/tag.py
index eeca246df..51ace9d9c 100644
--- a/endpoints/api/tag.py
+++ b/endpoints/api/tag.py
@@ -122,7 +122,7 @@ class RepositoryTag(RepositoryParamResource):
                {'username': username, 'repo': repository, 'tag': tag},
                repo=model.repository.get_repository(namespace, repository))
 
-    return 'Deleted', 204
+    return '', 204
 
 
 @resource('/v1/repository/<apirepopath:repository>/tag/<tag>/images')
diff --git a/endpoints/api/team.py b/endpoints/api/team.py
index 3fdb5bd5f..a427c472a 100644
--- a/endpoints/api/team.py
+++ b/endpoints/api/team.py
@@ -175,7 +175,7 @@ class OrganizationTeam(ApiResource):
     if permission.can():
       model.team.remove_team(orgname, teamname, get_authenticated_user().username)
       log_action('org_delete_team', orgname, {'team': teamname})
-      return 'Deleted', 204
+      return '', 204
 
     raise Unauthorized()
 
@@ -293,11 +293,11 @@ class TeamMember(ApiResource):
           'team': teamname,
           'member': membername
         })
-        return 'Deleted', 204
+        return '', 204
 
       model.team.remove_user_from_team(orgname, teamname, membername, invoking_user)
       log_action('org_remove_team_member', orgname, {'member': membername, 'team': teamname})
-      return 'Deleted', 204
+      return '', 204
 
     raise Unauthorized()
 
@@ -353,7 +353,7 @@ class InviteTeamMember(ApiResource):
         'team': teamname,
         'member': email
       })
-      return 'Deleted', 204
+      return '', 204
 
     raise Unauthorized()
 
@@ -418,4 +418,4 @@ class TeamMemberInvite(ApiResource):
       'inviter': inviter.username
     })
 
-    return 'Deleted', 204
+    return '', 204
diff --git a/endpoints/api/user.py b/endpoints/api/user.py
index 114ac7277..e26727225 100644
--- a/endpoints/api/user.py
+++ b/endpoints/api/user.py
@@ -421,7 +421,7 @@ class User(ApiResource):
       abort(404)
 
     model.user.delete_user(get_authenticated_user(), all_queues)
-    return 'Deleted', 204
+    return '', 204
 
 
 @resource('/v1/user/private')
@@ -873,7 +873,7 @@ class UserAuthorization(ApiResource):
       raise NotFound()
 
     access_token.delete_instance(recursive=True, delete_nullable=True)
-    return 'Deleted', 204
+    return '', 204
 
 @resource('/v1/user/starred')
 class StarredRepositoryList(ApiResource):
@@ -956,7 +956,7 @@ class StarredRepository(RepositoryParamResource):
 
     if repo:
       model.repository.unstar_repository(user, repo)
-      return 'Deleted', 204
+      return '', 204
 
 
 @resource('/v1/users/<username>')