diff --git a/tests/utils/shippable/shippable.sh b/tests/utils/shippable/shippable.sh
index bffd4acc..4bf48ef3 100755
--- a/tests/utils/shippable/shippable.sh
+++ b/tests/utils/shippable/shippable.sh
@@ -49,7 +49,7 @@ function retry
         echo "@* -> ${result}"
     done
     echo "Command '@*' failed 3 times!"
-    exit -1
+    exit 255
 }
 
 command -v pip