diff --git a/configure.ac b/configure.ac
index ff51ccf..adae598 100644
--- a/configure.ac
+++ b/configure.ac
@@ -263,4 +263,5 @@
     tests/nanobts_omlattr/Makefile
     doc/Makefile
     doc/examples/Makefile
+    contrib/Makefile
     Makefile)