diff --git a/.gitignore b/.gitignore
index 8e227a226a..f0b56094f2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,6 +26,7 @@ lib*.pc
 
 # Local excludes in root directory
 /GNUmakefile
+/config.cache
 /config.log
 /config.status
 /pgsql.sln