diff --git a/distrib/msw/innotop.txt b/distrib/msw/innotop.txt
index 7db065fbcc..c8323db6f6 100644
--- a/distrib/msw/innotop.txt
+++ b/distrib/msw/innotop.txt
@@ -30,7 +30,7 @@
     AlwaysCreateUninstallIcon=1
     UninstallIconName=Uninstall wxWindows 2.4.1
     Uninstallable=1
-    DefaultDirName=c:\wxWindows_2.4.1
+    DefaultDirName=c:\wxWindows-2.4.1
     DefaultGroupName=wxWindows 2.4.1
     LicenseFile=C:\wx24\wxWindows\docs\licence.txt
     InfoBeforeFile=C:\wx24\wxWindows\docs\readme.txt