diff --git a/SConstruct b/SConstruct
index 971f5e61..e33e0707 100644
--- a/SConstruct
+++ b/SConstruct
@@ -168,7 +168,8 @@ defenv.Alias('install-includes', '$PREFIX/Include')
 
 dist_zip = 'nsis-${VERSION}.zip'
 zip_target = defenv.Zip(dist_zip, '$DISTDIR')
-defenv.AddPostAction(zip_target, Delete('$DISTDIR'))
+delete_action = defenv.AddPostAction(zip_target, Delete('$DISTDIR'))
+AlwaysBuild(delete_action)
 defenv.Alias('dist', dist_zip)
 
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