diff --git a/test/unit/rules/functions/test_getatt_format.py b/test/unit/rules/functions/test_getatt_format.py
index 24cc0cf540..81e589b159 100644
--- a/test/unit/rules/functions/test_getatt_format.py
+++ b/test/unit/rules/functions/test_getatt_format.py
@@ -27,6 +27,7 @@ def template():
             "MyProvisionedProduct": {
                 "Type": "AWS::ServiceCatalog::CloudFormationProvisionedProduct"
             },
+            "MySSMParameter": {"Type": "AWS::SSM::Parameter"},
         },
     }
 
@@ -64,6 +65,12 @@ def template():
             {"format": "AWS::EC2::SecurityGroup.GroupId"},
             [],
         ),
+        (
+            "Valid GetAtt because of exception with attribute",
+            ["MySSMParameter", "Arn"],
+            {"format": "AWS::EC2::Image.Id"},
+            [],
+        ),
         (
             "Invalid GetAtt with a bad format",
             ["MyBucket", "Arn"],