diff --git a/awx/api/views.py b/awx/api/views.py
index bea9711da9..de88b44518 100644
--- a/awx/api/views.py
+++ b/awx/api/views.py
@@ -1152,7 +1152,7 @@ class ProjectUpdateDetail(RetrieveDestroyAPIView):
 
     def destroy(self, request, *args, **kwargs):
         obj = self.get_object()
-        if obj.unified_job_nodes.filter(workflow_job__status__in=ACTIVE_STATES).exists():
+        if obj.unified_job_node.filter(workflow_job__status__in=ACTIVE_STATES).exists():
             raise PermissionDenied(detail=_('Cannot delete job resource when associated workflow job is running.'))
         return super(ProjectUpdateDetail, self).destroy(request, *args, **kwargs)
 
@@ -2303,7 +2303,7 @@ class InventoryUpdateDetail(RetrieveDestroyAPIView):
 
     def destroy(self, request, *args, **kwargs):
         obj = self.get_object()
-        if obj.unified_job_nodes.filter(workflow_job__status__in=ACTIVE_STATES).exists():
+        if obj.unified_job_node.filter(workflow_job__status__in=ACTIVE_STATES).exists():
             raise PermissionDenied(detail=_('Cannot delete job resource when associated workflow job is running.'))
         return super(InventoryUpdateDetail, self).destroy(request, *args, **kwargs)
 
@@ -3297,7 +3297,7 @@ class JobDetail(RetrieveUpdateDestroyAPIView):
 
     def destroy(self, request, *args, **kwargs):
         obj = self.get_object()
-        if obj.unified_job_nodes.filter(workflow_job__status__in=ACTIVE_STATES).exists():
+        if obj.unified_job_node.filter(workflow_job__status__in=ACTIVE_STATES).exists():
             raise PermissionDenied(detail=_('Cannot delete job resource when associated workflow job is running.'))
         return super(JobDetail, self).destroy(request, *args, **kwargs)