diff --git a/DocService/sources/DocsCoServer.js b/DocService/sources/DocsCoServer.js
index f13178cc..f44ed502 100644
--- a/DocService/sources/DocsCoServer.js
+++ b/DocService/sources/DocsCoServer.js
@@ -2841,6 +2841,11 @@ exports.install = function(server, callbackFunction) {
 
     let puckerIndex = yield* getChangesIndex(ctx, docId);
 
+    if (constants.CONN_CLOSED === conn.conn.readyState) {
+      //closing could happen during async action
+      return;
+    }
+
     let deleteIndex = -1;
     if (data.startSaveChanges && null != data.deleteIndex) {
       deleteIndex = data.deleteIndex;
@@ -2855,6 +2860,11 @@ exports.install = function(server, callbackFunction) {
       }
     }
 
+    if (constants.CONN_CLOSED === conn.conn.readyState) {
+      //closing could happen during async action
+      return;
+    }
+
     // Стартовый индекс изменения при добавлении
     const startIndex = puckerIndex;