diff --git a/.gitignore b/.gitignore
index c604747a0d..f4b4bb4dc1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -145,6 +145,7 @@ Makefile
 Makefile.in
 config.cache
 stamp-h[0-9]
+.am[0-9]*/
 .dirstamp
 .deps
 tmp