diff --git a/yaml-generation/generateDimensions.php b/yaml-generation/generateDimensions.php
index bd057a7..fd13db9 100644
--- a/yaml-generation/generateDimensions.php
+++ b/yaml-generation/generateDimensions.php
@@ -159,7 +159,8 @@
     foreach ($errorMsg as $e) {
         echo "ERROR: $e\n";
     }
-    exit("Please fix the errors");
+    fwrite(STDERR, "Please fix the errors\n");
+    exit(1);
 }