diff --git a/scripts/update_portage.sh b/scripts/update_portage.sh
index ac23dfe..38c83c2 100755
--- a/scripts/update_portage.sh
+++ b/scripts/update_portage.sh
@@ -38,7 +38,7 @@ umount_overlay () {
 
 # umount current, replace and mount new 
 replace_squashfs () {
-    [ ! -f ${SQFS_PORTAGE}.new ] || \
+    [ -f ${SQFS_PORTAGE}.new ] || \
       { echo "No new portage tree version found!"; exit 1; }
 
     mountpoint -q ${PORTAGE}