diff --git a/crypto/refcount_test.c b/crypto/refcount_test.c
index 53db90f6..97bfbd6f 100644
--- a/crypto/refcount_test.c
+++ b/crypto/refcount_test.c
@@ -19,7 +19,7 @@
 #include <openssl/type_check.h>
 
 
-int main() {
+int main(int argc, char **argv) {
   CRYPTO_refcount_t count = 0;
 
   CRYPTO_refcount_inc(&count);