diff --git a/.gitignore b/.gitignore
index 54d75be5b..d5bb1cc1a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,9 @@
 # Directories generated by Ocamlbuild
 _build
 
+# generated by oUnit
+/oUnit-all.cache
+
 # autoconf-generated stuff
 /acinclude.m4
 /aclocal.m4