diff --git a/tests/Makefile b/tests/Makefile
index 25b704a..307b7e1 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -75,7 +75,7 @@
 	test_suite_md$(EXEXT)		test_suite_mdx$(EXEXT)		\
 	test_suite_memory_buffer_alloc$(EXEXT)				\
 	test_suite_mpi$(EXEXT)		test_suite_pbkdf2$(EXEXT)	\
-	test_suite_pem$(EXEXT)						\
+	test_suite_pem$(EXEXT)		test_suite_pkcs1_v15$(EXEXT)	\
 	test_suite_pkcs1_v21$(EXEXT)	test_suite_pkcs5$(EXEXT)	\
 	test_suite_pkparse$(EXEXT)	test_suite_pkwrite$(EXEXT)	\
 	test_suite_pk$(EXEXT)						\
@@ -367,6 +367,10 @@
 	echo   "  CC    	$<"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
 
+test_suite_pkcs1_v15$(EXEXT): test_suite_pkcs1_v15.c $(DEP)
+	echo   "  CC    	$<"
+	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
+
 test_suite_pkcs1_v21$(EXEXT): test_suite_pkcs1_v21.c $(DEP)
 	echo   "  CC    	$<"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@