diff --git a/stepmania/stepmania.nsi b/stepmania/stepmania.nsi
index aa8bfb47fd..1b78cfa8e7 100644
--- a/stepmania/stepmania.nsi
+++ b/stepmania/stepmania.nsi
@@ -184,8 +184,6 @@ SetOutPath "$INSTDIR"
 File "msvcr70.dll"
 File "msvcp70.dll"
 File "jpeg.dll"
-File "libpng13a.dll"
-File "zliba.dll"
 File "SDL.dll"
 File "SDL_image.dll"
 ; File "SDL_net.dll"
@@ -297,8 +295,6 @@ RMDir "$INSTDIR\Visualizations"
 Delete "$INSTDIR\msvcr70.dll"
 Delete "$INSTDIR\msvcp70.dll"
 Delete "$INSTDIR\jpeg.dll"
-Delete "$INSTDIR\libpng13a.dll"
-Delete "$INSTDIR\zliba.dll"
 Delete "$INSTDIR\SDL.dll"
 Delete "$INSTDIR\SDL_image.dll"
 Delete "$INSTDIR\COPYING.txt"