diff --git a/src/languages/gml.js b/src/languages/gml.js
index d92afc0060..0696aaed44 100644
--- a/src/languages/gml.js
+++ b/src/languages/gml.js
@@ -1149,7 +1149,7 @@ export default function(hljs) {
    */
   const STRING_NUMERICAL_SUBSTITUTION = {
     match: /{[0-9]+}/,
-    scope: "literal"
+    scope: "subst"
   };
 
   /**