diff --git a/sc2/build/win32_install/uqm-installer.nsi b/sc2/build/win32_install/uqm-installer.nsi
index 34069c69d..8b6783fa8 100644
--- a/sc2/build/win32_install/uqm-installer.nsi
+++ b/sc2/build/win32_install/uqm-installer.nsi
@@ -492,6 +492,7 @@ Section Uninstall
   Delete "$INSTDIR\content\packages\addons\remix\uqm-remix-pack3.zip"
   Delete "$INSTDIR\content\packages\addons\remix\uqm-remix-pack2.zip"
   Delete "$INSTDIR\content\packages\addons\remix\uqm-remix-pack1.zip"
+  Delete "$INSTDIR\content\addons\uqm-remix-disc4-1.uqm"
   Delete "$INSTDIR\content\addons\uqm-remix-disc4.uqm"
   Delete "$INSTDIR\content\addons\uqm-remix-disc3.uqm"
   Delete "$INSTDIR\content\addons\uqm-remix-disc2.uqm"