diff --git a/.gitignore b/.gitignore
index be5d0a8195..015a4fd9f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -83,3 +83,7 @@ data/meterpreter/screenshot.*.dll
 # private source. If you're interested in this functionality,
 # check out Metasploit Pro: http://metasploit.com/download
 data/meterpreter/ext_server_pivot.*.dll
+
+# Avoid checking in metakitty, the source for
+# https://rapid7.github.io/metasploit-framework. It's an orphan branch.
+/metakitty