diff --git a/src/Vehicle/SubmarineFact.json b/src/Vehicle/SubmarineFact.json
index 19532a48a50e519de15e81207c5f862b339bb6dd..bc06eedb85e6ccc75134d9bc0551acd3c1f74783 100644
--- a/src/Vehicle/SubmarineFact.json
+++ b/src/Vehicle/SubmarineFact.json
@@ -32,6 +32,8 @@
 {
     "name":             "input hold",
     "shortDescription": "Input Hold",
-    "type":             "int16"
+    "type":             "int16",
+    "enumStrings":      "Disabled,Enabled",
+    "enumValues":       "0,1"
 }
 ]