diff --git a/Installer/pkgPreInstall.sh b/Installer/pkgPreInstall.sh
index 6a9ab99b..11ec6333 100644
--- a/Installer/pkgPreInstall.sh
+++ b/Installer/pkgPreInstall.sh
@@ -13,10 +13,10 @@ if [ "${login_user}" = root ]; then
     rm -rf /Library/Keyboard\ Layouts/vChewing\ MiTAC.keylayout || true
 fi
 
-rm -rf ~/Library/Input\ Methods/vChewing.app
-rm -rf ~/Library/Keyboard\ Layouts/vChewingKeyLayout.bundle
-rm -rf ~/Library/Keyboard\ Layouts/vChewing\ Dachen.keylayout
-rm -rf ~/Library/Keyboard\ Layouts/vChewing\ ETen.keylayout
-rm -rf ~/Library/Keyboard\ Layouts/vChewing\ FakeSeigyou.keylayout
-rm -rf ~/Library/Keyboard\ Layouts/vChewing\ IBM.keylayout
-rm -rf ~/Library/Keyboard\ Layouts/vChewing\ MiTAC.keylayout
+rm -rf ~/Library/Input\ Methods/vChewing.app || true
+rm -rf ~/Library/Keyboard\ Layouts/vChewingKeyLayout.bundle || true
+rm -rf ~/Library/Keyboard\ Layouts/vChewing\ Dachen.keylayout || true
+rm -rf ~/Library/Keyboard\ Layouts/vChewing\ ETen.keylayout || true
+rm -rf ~/Library/Keyboard\ Layouts/vChewing\ FakeSeigyou.keylayout || true
+rm -rf ~/Library/Keyboard\ Layouts/vChewing\ IBM.keylayout || true
+rm -rf ~/Library/Keyboard\ Layouts/vChewing\ MiTAC.keylayout || true