diff --git a/windows2usb b/windows2usb
index 7421351..0d411f0 100755
--- a/windows2usb
+++ b/windows2usb
@@ -64,7 +64,7 @@ function get_iso_name() {
 }
 
 function check_installwim_gt4gib() {
-    7z l "$1" | awk '($6 ~ /install.wim/) {if ($4 > 4294967296) {exit 0}; exit 1} END {exit 1}'
+    7z l "$1" | awk 'BEGIN {doend=1} ($6 ~ /install.wim/) {if ($4 > 4294967296) {doend=0; exit 0}; doend=0; exit 1} END {if (doend) {exit 1}}'
 }
 
 function create_partitions() {