diff --git a/config/rootfiles/core/194/update.sh b/config/rootfiles/core/194/update.sh
index e1e9dde9b..2ab4ca2a2 100644
--- a/config/rootfiles/core/194/update.sh
+++ b/config/rootfiles/core/194/update.sh
@@ -103,6 +103,11 @@ ldconfig
 # Filesytem cleanup
 /usr/local/bin/filesystem-cleanup
 
+# Increment ipsec serial file if x509 certificates present and no content in index.txt
+if [ -e /var/ipfire/certs/hostcert.pm ] && [ -z /var/ipfire/certs/index.txt]; then
+    sed -i "s/01/02/" /var/ipfire/certs/serial
+fi
+
 # Start services
 /etc/init.d/ipsec restart
 /etc/init.d/suricata restart