diff --git a/awx/main/scheduler/__init__.py b/awx/main/scheduler/__init__.py
index f99e7247cb..b02aa56e0a 100644
--- a/awx/main/scheduler/__init__.py
+++ b/awx/main/scheduler/__init__.py
@@ -46,11 +46,12 @@ class TaskManager():
         return False
 
     def get_tasks(self, status_list=('pending', 'waiting', 'running')):
-        jobs = [j for j in Job.objects.filter(status__in=status_list)]
-        inventory_updates = [i for i in InventoryUpdate.objects.filter(status__in=status_list)]
-        project_updates = [p for p in ProjectUpdate.objects.filter(status__in=status_list)]
-        system_jobs = [s for s in SystemJob.objects.filter(status__in=status_list)]
-        ad_hoc_commands = [a for a in AdHocCommand.objects.filter(status__in=status_list)]
+        jobs = [j for j in Job.objects.filter(status__in=status_list).prefetch_related('instance_group')]
+        inventory_updates_qs = InventoryUpdate.objects.filter(status__in=status_list).prefetch_related('inventory_source', 'instance_group')
+        inventory_updates = [i for i in inventory_updates_qs]
+        project_updates = [p for p in ProjectUpdate.objects.filter(status__in=status_list).prefetch_related('instance_group')]
+        system_jobs = [s for s in SystemJob.objects.filter(status__in=status_list).prefetch_related('instance_group')]
+        ad_hoc_commands = [a for a in AdHocCommand.objects.filter(status__in=status_list).prefetch_related('instance_group')]
         workflow_jobs = [w for w in WorkflowJob.objects.filter(status__in=status_list)]
         all_tasks = sorted(jobs + project_updates + inventory_updates + system_jobs + ad_hoc_commands + workflow_jobs,
                            key=lambda task: task.created)