diff --git a/backend/static/main-hub/app/view/requests/RequestWindow.js b/backend/static/main-hub/app/view/requests/RequestWindow.js
index 91cbe27dd..3929d0119 100644
--- a/backend/static/main-hub/app/view/requests/RequestWindow.js
+++ b/backend/static/main-hub/app/view/requests/RequestWindow.js
@@ -13,6 +13,10 @@ Ext.define("MainHub.view.requests.RequestWindow", {
   modal: true,
   resizable: true,
 
+  listeners: {
+    beforeclose: "onRequestWindowBeforeClose"
+  },
+
   items: [
     {
       xtype: "container",
diff --git a/backend/static/main-hub/app/view/requests/RequestWindowController.js b/backend/static/main-hub/app/view/requests/RequestWindowController.js
index 0479b6a48..8419fdd80 100644
--- a/backend/static/main-hub/app/view/requests/RequestWindowController.js
+++ b/backend/static/main-hub/app/view/requests/RequestWindowController.js
@@ -393,6 +393,17 @@ Ext.define("MainHub.view.requests.RequestWindowController", {
     });
   },
 
+  onRequestWindowBeforeClose: function (wnd) {
+    var librariesInRequestStore = Ext.getStore("librariesInRequestStore");
+    if (librariesInRequestStore) {
+      librariesInRequestStore.removeAll();
+    }
+    var librariesInRequestGrid = wnd.down("#libraries-in-request-grid");
+    if (librariesInRequestGrid) {
+      librariesInRequestGrid.getView().refresh();
+    }
+  },
+
   initializeTooltips: function () {
     $.each($(".request-field-tooltip"), function (idx, item) {
       Ext.create("Ext.tip.ToolTip", {