diff --git a/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/CMCMK-Stack.template.json b/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/CMCMK-Stack.template.json
index debd913dba322..b06fa0d58a5fc 100644
--- a/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/CMCMK-Stack.template.json
+++ b/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/CMCMK-Stack.template.json
@@ -9,7 +9,7 @@
        "Action": "sts:AssumeRole",
        "Effect": "Allow",
        "Principal": {
-        "Service": "lambda.amazonaws.com"
+        "Service": "lambda.amazonaws.com" 
        }
       }
      ],
diff --git a/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/StagingStack-default-resourcesmax-ACCOUNT-REGION.template.json b/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/StagingStack-default-resourcesmax-ACCOUNT-REGION.template.json
index 057870eec4d5d..7e53d3580bc9b 100644
--- a/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/StagingStack-default-resourcesmax-ACCOUNT-REGION.template.json
+++ b/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/StagingStack-default-resourcesmax-ACCOUNT-REGION.template.json
@@ -16,7 +16,7 @@
           [
            "arn:",
            {
-            "Ref": "AWS::Partition"
+            "Ref": "AWS::Partition" 
            },
            ":iam::",
            {
diff --git a/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/codepipelinenestedstackPipelineCrossRegionStack37C990C7.nested.template.json b/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/codepipelinenestedstackPipelineCrossRegionStack37C990C7.nested.template.json
index 3d81160451042..0e704e5d01dd9 100644
--- a/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/codepipelinenestedstackPipelineCrossRegionStack37C990C7.nested.template.json
+++ b/tools/@aws-cdk/cfn-guard-custom-rules-tool/test/templates/codepipelinenestedstackPipelineCrossRegionStack37C990C7.nested.template.json
@@ -9,7 +9,7 @@
        "Action": "sts:AssumeRole", 
        "Effect": "Allow",
        "Principal": {
-        "Service": "codepipeline.amazonaws.com"
+        "Service": "codepipeline.amazonaws.com" 
        }
       }
      ],