diff --git a/irctest/cases.py b/irctest/cases.py
index 61051c6..cd7deca 100644
--- a/irctest/cases.py
+++ b/irctest/cases.py
@@ -113,7 +113,11 @@ class BaseClientTestCase(_IrcTestCase):
         self._setUpServer()
     def tearDown(self):
         if self.conn:
-            self.conn.sendall(b'QUIT :end of test.')
+            try:
+                self.conn.sendall(b'QUIT :end of test.')
+            except BrokenPipeError:
+                # client already disconnected
+                pass
         self.controller.kill()
         if self.conn:
             self.conn_file.close()
diff --git a/irctest/client_tests/test_tls.py b/irctest/client_tests/test_tls.py
index 737fa2e..5b47362 100644
--- a/irctest/client_tests/test_tls.py
+++ b/irctest/client_tests/test_tls.py
@@ -139,5 +139,5 @@ class TlsTestCase(cases.BaseClientTestCase):
                 tls_config=tls_config,
                 )
         self.acceptClient(tls_cert=BAD_CERT, tls_key=BAD_KEY)
-        with self.assertRaises(ConnectionClosed):
+        with self.assertRaises((ConnectionClosed, ConnectionResetError)):
             m = self.getMessage()