diff --git a/wolfcrypt/src/evp.c b/wolfcrypt/src/evp.c
index 0b350dc7a..05cf734f0 100644
--- a/wolfcrypt/src/evp.c
+++ b/wolfcrypt/src/evp.c
@@ -3970,7 +3970,7 @@ int wolfSSL_EVP_MD_type(const WOLFSSL_EVP_MD *md)
      */
     static void md_do_all_func(const WOLFSSL_OBJ_NAME* nm, void* arg)
     {
-        struct do_all_md *md = arg;
+        struct do_all_md *md = (struct do_all_md*)arg;
         
         const char* alias = NULL;
         const struct s_ent *ent;