diff --git a/data/fields/armrest.json b/data/fields/armrest.json
index 3714d59a1..aa2fbe3a7 100644
--- a/data/fields/armrest.json
+++ b/data/fields/armrest.json
@@ -1,13 +1,12 @@
 {
     "key": "armrest",
-    "type": "combo",
+    "type": "check",
     "label": "Armrests",
-    "placeholder": "No armrests, One or more armrests...",
     "strings": {
         "options": {
-            "no": "No armrests",
-            "yes": "One or more armrests"
+            "undefined": "Unknown",
+            "yes": "One or more armrests",
+            "no": "No armrests"
         }
-    },
-    "customValues": false
+    }
 }