diff --git a/.gitignore b/.gitignore
index 255524fe52..90236b35db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,4 @@
 /win_build/*.filters
 /win_build/boinc.sdf
 /win_build/boinc.opensdf
+/win_build/ipch