diff --git a/lib/ansible/modules/cloud/azure/azure_rm_resourcegroup_facts.py b/lib/ansible/modules/cloud/azure/azure_rm_resourcegroup_facts.py
index 7dbcc74ea1..768302978d 100644
--- a/lib/ansible/modules/cloud/azure/azure_rm_resourcegroup_facts.py
+++ b/lib/ansible/modules/cloud/azure/azure_rm_resourcegroup_facts.py
@@ -144,7 +144,7 @@ class AzureRMResourceGroupFacts(AzureRMModuleBase):
         try:
             response = self.rm_client.resource_groups.list()
         except CloudError as exc:
-            self.fail("Failed to list all items - {1}".format(str(exc)))
+            self.fail("Failed to list all items - {0}".format(str(exc)))
 
         results = []
         for item in response: