diff --git a/setup/so-setup b/setup/so-setup
index 54b5a03e4..86d3b5e5c 100755
--- a/setup/so-setup
+++ b/setup/so-setup
@@ -57,6 +57,9 @@ function progress() {
 		fi
 		whiptail --title "Security Onion Install" --gauge 'Please wait while installing' 6 60 0
 	else
+		if grep -q "ERROR" $setup_log || [[ -s /var/spool/mail/root ]]; then
+			exit 1
+		fi
 		cat >> $setup_log 2>&1
 	fi