diff --git a/ttd.rc b/ttd.rc
index 0a361626cc..65dc355ff5 100644
--- a/ttd.rc
+++ b/ttd.rc
@@ -87,7 +87,7 @@ BEGIN
             VALUE "PrivateBuild", "\0"
             VALUE "ProductName", "OpenTTD\0"
             VALUE "ProductVersion", "0.3.3.0\0"
-            VALUE "SpecialBuild", "\0"
+            VALUE "SpecialBuild", "-\0"
         END
     END
     BLOCK "VarFileInfo"