diff --git a/openbsd-compat/regress/strtonumtest.c b/openbsd-compat/regress/strtonumtest.c
index 46bd2b916..d55cb0ff8 100644
--- a/openbsd-compat/regress/strtonumtest.c
+++ b/openbsd-compat/regress/strtonumtest.c
@@ -57,7 +57,7 @@ test(const char *p, long long lb, long long ub, int ok)
 	}
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
 	test("1", 0, 10, 1);
 	test("0", -2, 5, 1);