diff --git a/.gitignore b/.gitignore
index 6db013a2..cd4f4973 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,3 +67,4 @@ c-ares-config-version.cmake
 Makefile.inc.cmake
 cmake_install.cmake
 aminclude_static.am
+src/lib/*/.dirstamp