diff --git a/lib/des/Makefile.am b/lib/des/Makefile.am
index 1d6b90eeb..864900530 100644
--- a/lib/des/Makefile.am
+++ b/lib/des/Makefile.am
@@ -140,4 +140,6 @@ test_crypto: test_crypto.in Makefile
 
 CLEANFILES = hcrypto hcrypto-link test_crypto.tmp
 
-EXTRA_DIST = test_crypto.in
+EXTRA_DIST = \
+	rsakey.der \
+	test_crypto.in