diff --git a/src/server/sessionhandler.py b/src/server/sessionhandler.py
index e236f24ef..46a5e58ee 100644
--- a/src/server/sessionhandler.py
+++ b/src/server/sessionhandler.py
@@ -113,6 +113,7 @@ class ServerSessionHandler(SessionHandler):
         """
         session = self.sessions.get(sessid, None)
         if session:
+            session.disconnect()
             del self.sessions[session.sessid]
             self.session_count(-1)