diff --git a/src/Main/options.cxx b/src/Main/options.cxx
index 6c68e74..99fc4bd 100644
--- a/src/Main/options.cxx
+++ b/src/Main/options.cxx
@@ -130,7 +130,7 @@ void fgSetDefaults ()
 
     fgSetBool("/sim/terrasync/global", false);
     fgSetString("/sim/sound/ttsurl", "");
-    fgSetString("/sim/menubar/visibility",true);
+    fgSetBool("/sim/menubar/visibility",true);
 
     // Position (deliberately out of range)
     fgSetDouble("/position/longitude-deg", 9999.0);