diff --git a/bin/pt-mysql-summary b/bin/pt-mysql-summary
index eb69e6c5..e2126803 100755
--- a/bin/pt-mysql-summary
+++ b/bin/pt-mysql-summary
@@ -2358,10 +2358,9 @@ report_mysql_summary () {
    section_percona_server_features "$dir/mysql-variables"
 
    section "Percona XtraDB Cluster"
-   local has_wsrep="$(get_var "wsrep_on" "$dir/mysql-variables")"
+   local has_wsrep=$($CMD_MYSQL $EXT_ARGV -ss -e 'show session variables like "%wsrep_on%";' | cut -f2 | grep -i "on")
    if [ -n "${has_wsrep:-""}" ]; then
-      local wsrep_on="$(feat_on "$dir/mysql-variables" "wsrep_on")"
-      if [ "${wsrep_on:-""}" = "Enabled" ]; then
+      if [ "${has_wsrep:-""}" = "ON" ]; then
          section_percona_xtradb_cluster "$dir/mysql-variables" "$dir/mysql-status"
       else
          name_val "wsrep_on" "OFF"