diff --git a/tools/mtouch/Application.cs b/tools/mtouch/Application.cs
index 47945b2d443b..bd5809638f78 100644
--- a/tools/mtouch/Application.cs
+++ b/tools/mtouch/Application.cs
@@ -320,6 +320,8 @@ string GetStringFromInfoPList (string directory, string key)
 				return null;
 
 			var plist = Driver.FromPList (info_plist);
+			if (!plist.ContainsKey (key))
+				return null;
 			return plist.GetString (key);
 		}