diff --git a/apps/project/admin.py b/apps/project/admin.py
index 0499a8497f..c8cce7d97a 100644
--- a/apps/project/admin.py
+++ b/apps/project/admin.py
@@ -25,7 +25,6 @@
     ProjectOrganization,
     ProjectChangeLog,
     ProjectPinned,
-    ProjectJoinRequest
 )
 TRIGGER_LIMIT = 5
 
@@ -230,14 +229,12 @@ def get_readonly_fields(self, request, obj=None):
         return self.readonly_fields
 
 
-
 @admin.register(ProjectJoinRequest)
 class ProjectJoinAdmin(admin.ModelAdmin):
     search_fields = ['project__title']
     autocomplete_fields = ('requested_by', 'responded_by', 'project')
     list_display = ['project', 'requested_by', 'responded_by', 'status']
 
-
     def get_readonly_fields(self, request, obj=None):
         # editing an existing object
         if obj:
diff --git a/apps/project/mutation.py b/apps/project/mutation.py
index a97b314aa9..d91782f0eb 100644
--- a/apps/project/mutation.py
+++ b/apps/project/mutation.py
@@ -51,7 +51,6 @@
     UserPinnedProjectSerializer,
     BulkProjectPinnedSerializer,
     UserProjectLeaveSerializer
-    
 )
 from .schema import (
     ProjectDetailType,
@@ -359,11 +358,13 @@ class LeaveProject(ProjectScopeMixin, graphene.Mutation):
     @classmethod
     def mutate(cls, root, info, **kwargs):
         project = info.context.active_project
-        serializer = UserProjectLeaveSerializer(data ={} ,context={'request': info.context.request})
+        serializer = UserProjectLeaveSerializer(data={}, context={'request': info.context.request})
         if serializer.is_valid():
             serializer.save()
             return LeaveProject(ok=True, result=project)
         return LeaveProject(ok=False, errors=serializer.errors)
+
+
 class ProjectMutationType(
     # --Begin Project Scoped Mutation
     LeadMutation,
@@ -395,7 +396,6 @@ class Meta:
     assisted_tagging = graphene.Field(AssistedTaggingMutationType)
     leave_project = LeaveProject.Field()
 
-
     @staticmethod
     def get_custom_node(_, info, id):
         try:
@@ -473,7 +473,6 @@ def mutate(root, info, id):
         return DeleteUserPinnedProject(result=root, errors=None, ok=True)
 
 
-
 class Mutation(object):
     project_create = CreateProject.Field()
     join_project = CreateProjectJoin.Field()
diff --git a/apps/project/serializers.py b/apps/project/serializers.py
index f6b122aa60..c43f3afed5 100644
--- a/apps/project/serializers.py
+++ b/apps/project/serializers.py
@@ -53,7 +53,6 @@
 from .activity import project_activity_log
 
 
-
 class SimpleProjectSerializer(RemoveNullFieldsMixin,
                               serializers.ModelSerializer):
     class Meta:
@@ -970,11 +969,11 @@ def validate(self, data):
         )
         if membership.count() == 1:
             raise serializers.ValidationError('Cannot leave the project')
-        if membership.filter(role == ProjectRole.get_owner_role()).count() == 1:
+        if membership.filter(role=ProjectRole.get_owner_role()).count() == 1:
             raise serializers.ValidationError('Cannot leave the project')
         return data
-        
+
     def create(self, data):
         ProjectJoinRequest.objects.filter(project=self.project, requested_by=self.current_user).delete()
         ProjectMembership.objects.filter(project=self.project, member=self.current_user).delete()
-        return data
\ No newline at end of file
+        return data