diff --git a/.gitignore b/.gitignore
index 7f3981fec2..8c10e24245 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@ or-tools*.zip
 *.lib
 *.exp
 *.pdb
+*.pbtxt
 *.ass
 *.swp