diff --git a/zlibs/iso b/zlibs/iso
index aa23845..033a645 100644
--- a/zlibs/iso
+++ b/zlibs/iso
@@ -70,6 +70,7 @@ iso_setup_isolinux() {
 		*)
 			warn "no isolinux has been copied. take care of it yourself"
 			;;
+	esac
 	popd
 }