diff --git a/.gitignore b/.gitignore
index 9f9fbe221f..b26c7e9727 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,5 +30,8 @@ share/python-wheels/
 *.egg
 MANIFEST
 
+# doc build files
+Doc/_build/
+
 # pycharm
 .idea
\ No newline at end of file