diff --git a/stepmania/stepmania.nsi b/stepmania/stepmania.nsi
index 3e8782d759..a056c420bf 100644
--- a/stepmania/stepmania.nsi
+++ b/stepmania/stepmania.nsi
@@ -200,6 +200,7 @@ File "Program\avformat.dll"
 File "Program\resample.dll"
 File "Program\dbghelp.dll"
 File "Program\zlib1.dll"
+File "Program\lua.dll"
 
 SetOutPath "$INSTDIR"
 File "COPYING.txt"
@@ -350,6 +351,7 @@ Delete "$INSTDIR\Program\avformat.dll"
 Delete "$INSTDIR\Program\resample.dll"
 Delete "$INSTDIR\Program\dbghelp.dll"
 Delete "$INSTDIR\Program\zlib1.dll"
+Delete "$INSTDIR\Program\lua.dll"
 Delete "$INSTDIR\COPYING.txt"
 Delete "$INSTDIR\README-FIRST.html"
 Delete "$INSTDIR\NEWS"