diff --git a/example.c b/example.c
index b6306de..595922c 100644
--- a/example.c
+++ b/example.c
@@ -63,6 +63,7 @@ int main(int argc, char**argv) {
 	json_error_t jsone;
 	const char *err;
 	
+	b58_sha256_impl = my_sha256;
 	blkmk_sha256_impl = my_sha256;
 	
 	testb58();