diff --git a/plugins/mysql/js/mysql.js b/plugins/mysql/js/mysql.js
index 82c2f34da..127dab366 100755
--- a/plugins/mysql/js/mysql.js
+++ b/plugins/mysql/js/mysql.js
@@ -89,7 +89,7 @@ function runInfo(){
         }
 
         // Com_select , Qcache_inserts
-        var cache_size = ((parseInt(rdata.Qcache_hits) / (parseInt(rdata.Qcache_hits) + parseInt(rdata.Com_select))) * 100).toFixed(2) + '%';
+        var cache_size = ((parseInt(rdata.Qcache_hits) / (parseInt(rdata.Qcache_hits) + parseInt(rdata.Qcache_inserts))) * 100).toFixed(2) + '%';
         if (cache_size == 'NaN%') cache_size = 'OFF';
         var Con = '<div class="divtable"><table class="table table-hover table-bordered" style="margin-bottom:10px;background-color:#fafafa">\
                     <tbody>\