diff --git a/data/fields/tunnel/name.json b/data/fields/tunnel/name.json
index ccedb8b2..7e8689fd 100644
--- a/data/fields/tunnel/name.json
+++ b/data/fields/tunnel/name.json
@@ -3,6 +3,7 @@
     "type": "typeCombo",
     "label": "Tunnel Name"
     "prerequisiteTag": {
+        "key": "highway",
         "key": "tunnel"
     }
 }