diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
index c973157e28009ee25178f0104e166b02c7dffd28..79173336ee3fd4dd978f6052ce0a872e474ce6b6 100644
--- a/testsuite/Makefile.am
+++ b/testsuite/Makefile.am
@@ -5,7 +5,8 @@ AM_CPPFLAGS = -I$(top_srcdir)
 # installed version.
 AM_LDFLAGS = -L..
 
-noinst_PROGRAMS = aes-test arcfour-test blowfish-test cast128-test \
+noinst_PROGRAMS = aes-test arcfour-test arctwo-test \
+	   blowfish-test cast128-test \
            base16-test base64-test \
 	   des-test des3-test des-compat-test \
 	   md2-test md4-test md5-test md5-compat-test \