diff --git a/nsis/gvim.nsi b/nsis/gvim.nsi
index 3a6dc29..adb38a4 100644
--- a/nsis/gvim.nsi
+++ b/nsis/gvim.nsi
@@ -416,7 +416,7 @@
 	File ${VIMSRC}\vim.ico
 
 	SetOutPath $0\syntax
-	File /r ${VIMRT}\syntax\*.*
+	File /r /x testdir ${VIMRT}\syntax\*.*
 
 	SetOutPath $0\spell
 	File ${VIMRT}\spell\*.txt