diff --git a/www/common/outer/async-store.js b/www/common/outer/async-store.js
index afb799990..da7abf9d0 100644
--- a/www/common/outer/async-store.js
+++ b/www/common/outer/async-store.js
@@ -2277,6 +2277,9 @@ define([
             try {
                 store.onlyoffice.leavePad(chanId);
             } catch (e) { console.error(e); }
+            try {
+                Cache.leaveChannel(chanId);
+            } catch (e) { console.error(e); }
 
             if (!Store.channels[chanId]) { return; }
 
diff --git a/www/common/outer/cache-store.js b/www/common/outer/cache-store.js
index ad9f1e04f..4b21e22fe 100644
--- a/www/common/outer/cache-store.js
+++ b/www/common/outer/cache-store.js
@@ -117,6 +117,13 @@ define([
         });
     };
 
+    S.leaveChannel = function (id) {
+        if (t[id] && typeof(t[id].clear) === "function") {
+            t[id].clear();
+        }
+        delete t[id];
+    };
+
     S.clearChannel = function (id, cb) {
         cb = Util.once(Util.mkAsync(cb || function () {}));