diff --git a/assets/layers/bench/bench.json b/assets/layers/bench/bench.json
index 86c32c3925..6f91d2dc84 100644
--- a/assets/layers/bench/bench.json
+++ b/assets/layers/bench/bench.json
@@ -728,6 +728,7 @@
         },
         {
           "if": "colour=gray",
+          "alsoShowIf": "colour=grey",
           "then": {
             "en": "Colour: gray",
             "de": "Farbe: grau",