diff --git a/.gitignore-global b/.gitignore-global
index 651f977..ef5e5ac 100644
--- a/.gitignore-global
+++ b/.gitignore-global
@@ -33,3 +33,6 @@ interdiff*.txt
 # Ignore IDE and text editor files.
 .idea/
 *.sublime-*
+
+# Ignore temporary directories.
+tmp/