diff --git a/tools/run-mypy b/tools/run-mypy
index cafb267..d31e0fb 100755
--- a/tools/run-mypy
+++ b/tools/run-mypy
@@ -19,7 +19,6 @@ os.chdir(os.path.dirname(TOOLS_DIR))
 sys.path.append(os.path.dirname(TOOLS_DIR))
 
 exclude = """
-zulip/integrations/irc/irc_mirror_backend.py
 zulip/integrations/log2zulip/log2zulip
 zulip/integrations/perforce/zulip_perforce_config.py
 zulip/integrations/perforce/git_p4.py
diff --git a/zulip/integrations/irc/irc_mirror_backend.py b/zulip/integrations/irc/irc_mirror_backend.py
index 3a4cb36..8f9f2a4 100644
--- a/zulip/integrations/irc/irc_mirror_backend.py
+++ b/zulip/integrations/irc/irc_mirror_backend.py
@@ -1,6 +1,7 @@
 import irc.bot
 import irc.strings
 from irc.client import ip_numstr_to_quad, ip_quad_to_numstr, Event, ServerConnection
+from typing import Any, Dict
 
 IRC_DOMAIN = "irc.example.com"