diff --git a/web/client/components/catalog/Catalog.jsx b/web/client/components/catalog/Catalog.jsx
index 74ffb53a8f..c5fa3a90b2 100644
--- a/web/client/components/catalog/Catalog.jsx
+++ b/web/client/components/catalog/Catalog.jsx
@@ -236,9 +236,9 @@ const Catalog = React.createClass({
     setCatalogUrl(e) {
         this.setState({catalogURL: e.target.value});
     },
-    handlePage(mouseEvent) {
-        if (mouseEvent) {
-            let start = ((mouseEvent - 1) * this.props.pageSize) + 1;
+    handlePage(eventKey) {
+        if (eventKey) {
+            let start = ((eventKey - 1) * this.props.pageSize) + 1;
             this.props.onSearch(this.props.format, this.getCatalogUrl(), start, this.props.pageSize, this.props.searchOptions.text);
             this.setState({
                 loading: true