diff --git a/conf/qubes-x86_64.conf b/conf/qubes-x86_64.conf
index 4f229f4..d218ac2 100644
--- a/conf/qubes-x86_64.conf
+++ b/conf/qubes-x86_64.conf
@@ -10,7 +10,7 @@ distroverpkg=qubes-release
 tolerant=1
 exactarch=1
 obsoletes=1
-gpgcheck=0
+gpgcheck=1
 plugins=1
 metadata_expire=1800
 installroot=/tmp/qubes-installer/build/work/revisor