diff --git a/t/cpanel-setup b/t/cpanel-setup
index f1daf4aa..8ac4c655 100755
--- a/t/cpanel-setup
+++ b/t/cpanel-setup
@@ -35,6 +35,8 @@ pushd $ULC
 
 export CPANEL_BASE_INSTALL=1
 
+echo 'signature_validation=Off' >> /var/cpanel/cpanel.config
+
 echo "# ............. setup symlinks"
 ln -sf usr/local/cpanel/scripts /scripts
 ln -sf /bin/true /usr/local/cpanel/bin/build_locale_databases