diff --git a/programs/winemenubuilder/winemenubuilder.c b/programs/winemenubuilder/winemenubuilder.c
index 0797ec8bcda..8f6e0423767 100644
--- a/programs/winemenubuilder/winemenubuilder.c
+++ b/programs/winemenubuilder/winemenubuilder.c
@@ -1864,7 +1864,7 @@ static void update_association(LPCWSTR extension, LPCSTR mimeType, LPCWSTR progI
     RegSetValueExW(subkey, AppNameW, 0, REG_SZ, (const BYTE*) appNameW, (lstrlenW(appNameW) + 1) * sizeof(WCHAR));
     if (docName)
         RegSetValueExW(subkey, DocNameW, 0, REG_SZ, (const BYTE*) docName, (lstrlenW(docName) + 1) * sizeof(WCHAR));
-    RegSetValueExW(subkey, DesktopFileW, 0, REG_SZ, (const BYTE*) desktopFile, (lstrlenW(desktopFileW) + 1) * sizeof(WCHAR));
+    RegSetValueExW(subkey, DesktopFileW, 0, REG_SZ, (const BYTE*) desktopFileW, (lstrlenW(desktopFileW) + 1) * sizeof(WCHAR));
 
 done:
     RegCloseKey(assocKey);