diff --git a/src/freedombone-utils-web b/src/freedombone-utils-web
index 9929cb7d..854dbc2b 100755
--- a/src/freedombone-utils-web
+++ b/src/freedombone-utils-web
@@ -1005,7 +1005,7 @@ function email_install_tls {
     fi
     if [ -f /etc/ssl/private/${DEFAULT_DOMAIN_NAME}.key ]; then
         if ! grep -q "MAIN_TLS_PRIVATEKEY = /etc/ssl/private/${DEFAULT_DOMAIN_NAME}.key" $tls_config_file; then
-            sed -i "/.ifdef MAIN_TLS_PRIVATEKEY/i\MAIN_TLS_PRIVATEKEY = /etc/ssl/private/${DEFAULT_DOMAIN_NAME}.key" $tls_config_file
+            sed -i "/.ifndef MAIN_TLS_PRIVATEKEY/i\MAIN_TLS_PRIVATEKEY = /etc/ssl/private/${DEFAULT_DOMAIN_NAME}.key" $tls_config_file
             email_config_changed=1
         fi
     fi