diff --git a/changelogs/fragments/50120-fix-vm-facts-managed-disk.yaml b/changelogs/fragments/50120-fix-vm-facts-managed-disk.yaml
new file mode 100644
index 00000000000..f7beb438404
--- /dev/null
+++ b/changelogs/fragments/50120-fix-vm-facts-managed-disk.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+- azure_rm_virtualmachine_facts - fixed crash related to VM with managed disk attached
diff --git a/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine_facts.py b/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine_facts.py
index b81d29e7716..b2e112ddc77 100644
--- a/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine_facts.py
+++ b/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine_facts.py
@@ -294,7 +294,9 @@ class AzureRMVirtualMachineFacts(AzureRMModuleBase):
         new_result['state'] = 'present'
         new_result['location'] = vm.location
         new_result['vm_size'] = result['properties']['hardwareProfile']['vmSize']
-        new_result['admin_username'] = result['properties']['osProfile']['adminUsername']
+        os_profile = result['properties'].get('osProfile')
+        if os_profile is not None:
+            new_result['admin_username'] = os_profile.get('adminUsername')
         image = result['properties']['storageProfile'].get('imageReference')
         if image is not None:
             new_result['image'] = {