diff --git a/integrations/svn/post-commit b/integrations/svn/post-commit
index dabfb12..ca549a8 100755
--- a/integrations/svn/post-commit
+++ b/integrations/svn/post-commit
@@ -34,6 +34,9 @@ import sys
 import os.path
 import pysvn
 
+if False:
+    from typing import Any, Dict, List, Optional, Text, Tuple, Union
+
 sys.path.insert(0, os.path.dirname(__file__))
 import zulip_svn_config as config
 VERSION = "0.9"
@@ -46,26 +49,27 @@ client = zulip.Client(
     email=config.ZULIP_USER,
     site=config.ZULIP_SITE,
     api_key=config.ZULIP_API_KEY,
-    client="ZulipSVN/" + VERSION)
-svn = pysvn.Client()
+    client="ZulipSVN/" + VERSION)  # type: zulip.Client
+svn = pysvn.Client()  # type: pysvn.Client
 
-path, rev = sys.argv[1:]
+path, rev = sys.argv[1:]  # type: Tuple[Text, Text]
 
 # since its a local path, prepend "file://"
 path = "file://" + path
 
-entry = svn.log(path, revision_end=pysvn.Revision(pysvn.opt_revision_kind.number, rev))[0]
-message = """**{0}** committed revision r{1} to `{2}`.
+entry = svn.log(path, revision_end=pysvn.Revision(pysvn.opt_revision_kind.number, rev))[0]  # type: Dict[Text, Union[Text, pysvn.Revision, List[Dict[Text, pysvn.Revision]]]]
+message = "**{0}** committed revision r{1} to `{2}`.\n\n> {3}".format(
+    entry['author'],
+    rev,
+    path.split('/')[-1],
+    entry['revprops']['svn:log'])  # type: Text
 
-> {3}
-""".format(entry['author'], rev, path.split('/')[-1], entry['revprops']['svn:log'])
-
-destination = config.commit_notice_destination(path, rev)
+destination = config.commit_notice_destination(path, rev)  # type: Optional[Dict[Text, Text]]
 
 message_data = {
     "type": "stream",
     "to": destination["stream"],
     "subject": destination["subject"],
     "content": message,
-}
+}  # type: Dict[str, Any]
 client.send_message(message_data)