diff --git a/.gitignore b/.gitignore
index 85e66ce829c5f2..5389954ca59578 100644
--- a/.gitignore
+++ b/.gitignore
@@ -124,3 +124,6 @@ desktop.ini
 
 # monkeytype
 monkeytype.sqlite3
+
+# This is left behind by Azure Restore Cache
+tmp_cache