diff --git a/tests/data_files/Makefile b/tests/data_files/Makefile
index a833984bf..dc14c11f6 100644
--- a/tests/data_files/Makefile
+++ b/tests/data_files/Makefile
@@ -75,6 +75,16 @@ all_final += test-ca-good-alt.crt
 test_ca_crt_file_ec = test-ca2.crt
 test_ca_key_file_ec = test-ca2.key
 
+test_ca_crt_cat12 = test-ca_cat12.crt
+$(test_ca_crt_cat12): $(test_ca_crt) $(test_ca_crt_file_ec)
+	cat $(test_ca_crt) $(test_ca_crt_file_ec) > $@
+all_final += $(test_ca_crt_cat12)
+
+test_ca_crt_cat21 = test-ca_cat21.crt
+$(test_ca_crt_cat21): $(test_ca_crt) $(test_ca_crt_file_ec)
+	cat $(test_ca_crt_file_ec) $(test_ca_crt) > $@
+all_final += $(test_ca_crt_cat21)
+
 test-int-ca.csr: test-int-ca.key $(test_ca_config_file)
 	$(OPENSSL) req -new -config $(test_ca_config_file) -key test-int-ca.key -subj "/C=NL/O=PolarSSL/CN=PolarSSL Test Intermediate CA" -out $@
 all_intermediate += test-int-ca.csr