diff --git a/.gitignore b/.gitignore
index 809e851ff11..078657ae852 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,6 +28,7 @@ build-aux/m4/ltversion.m4
 build-aux/missing
 build-aux/compile
 build-aux/test-driver
+config.cache
 config.log
 config.status
 configure