diff --git a/src/main/webapp/views/nodeInfoDetails.html b/src/main/webapp/views/nodeInfoDetails.html
index c477e19da..121d7c970 100644
--- a/src/main/webapp/views/nodeInfoDetails.html
+++ b/src/main/webapp/views/nodeInfoDetails.html
@@ -37,7 +37,7 @@
                         {{instance.name}}
                         <a class="btn btn-default btn-xs" ng-show="isWas" ng-href="#/inspector/{{node.text}}@{{node.serviceTypeCode}}/{{oNavbarVo.getPeriod()}}/{{oNavbarVo.getQueryEndTime()}}/{{instance.name}}" target="_blank" title="Inspect Agents" alt="Inspect Agents">Inspector</a>
                         <a class="btn btn-default btn-xs" href="http://hubble.arcuscloud.nhncorp.com/" target="_blank" title="Arcus monitoring site" ng-show="nodeCategory == 'ARCUS'">Hubble</a>
-                        <button type="button" class="btn btn-xs" ng-init="instance.showChart=false" ng-click="instance.showChart=!instance.showChart"
+                        <button type="button" class="btn btn-default btn-xs" ng-init="instance.showChart=false" ng-click="instance.showChart=!instance.showChart"
                                 ng-show="agentHistogram[instance.name]" ng-class="{true:'btn-danger', false:'btn-default'}[agentHistogram[instance.name].Error > 0]">
                             <span class="glyphicon" ng-class="{true:'glyphicon-minus',false:'glyphicon-plus'}[instance.showChart]"></span>
                         </button>