diff --git a/xpra/x11/bindings/xi2.pyx b/xpra/x11/bindings/xi2.pyx
index 11fd6cea28..f3f527f913 100644
--- a/xpra/x11/bindings/xi2.pyx
+++ b/xpra/x11/bindings/xi2.pyx
@@ -4,6 +4,7 @@
 # later version. See the file COPYING for details.
 
 import struct
+from typing import Dict
 from collections import deque
 
 from xpra.log import Logger