diff --git a/Makefile.am b/Makefile.am
index 8f489073..22bbd561 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -15,3 +15,4 @@ SUBDIRS += man
 endif
 
 CLEANFILES = man/8.out man/po/remove-potcdate.* man/*/login.defs.d man/*/*.mo
+EXTRA_DIST = tests/