diff --git a/.gitignore b/.gitignore
index 781a2ad6dc95c3ffe6931e3468a1051a42825a21..067da8c1a74fccbfd7bc3fbe3a589453782f1a3b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 Makefile
 config.log
 config.status
+autom4te.cache
 Doxyfile
 config.h
 examples/test_osm1