diff --git a/install-xash3ds.sh b/install-xash3ds.sh
index a49b1a2..cd55f7d 100644
--- a/install-xash3ds.sh
+++ b/install-xash3ds.sh
@@ -79,6 +79,7 @@ case $2 in
 		;;
 	"update")
 		cd xash3d-fwgs
+		./waf clean
 		rm bin/*
 		git pull
 		;;