diff --git a/Telegram/SourceFiles/platform/linux/main_window_linux.cpp b/Telegram/SourceFiles/platform/linux/main_window_linux.cpp
index e4507c795..1eb4f59d0 100644
--- a/Telegram/SourceFiles/platform/linux/main_window_linux.cpp
+++ b/Telegram/SourceFiles/platform/linux/main_window_linux.cpp
@@ -89,13 +89,16 @@ void XCBSkipTaskbar(QWindow *window, bool skip) {
 	xev.data.data32[3] = 0;
 	xev.data.data32[4] = 0;
 
-	xcb_send_event(
-		connection,
-		false,
-		root,
-		XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
-			| XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY,
-		reinterpret_cast<const char*>(&xev));
+	free(
+		xcb_request_check(
+			connection,
+			xcb_send_event_checked(
+				connection,
+				false,
+				root,
+				XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
+					| XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY,
+				reinterpret_cast<const char*>(&xev))));
 }
 #endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION