diff --git a/wolfcrypt/src/ecc.c b/wolfcrypt/src/ecc.c
index d30151e9b0..c2e78348e7 100644
--- a/wolfcrypt/src/ecc.c
+++ b/wolfcrypt/src/ecc.c
@@ -4971,7 +4971,7 @@ int wc_ecc_shared_secret_gen_sync(ecc_key* private_key, ecc_point* point,
 
 #ifdef HAVE_ECC_CDH
     if (k == k_lcl)
-        mp_clear(k);
+        mp_forcezero(k);
     WC_FREE_VAR_EX(k_lcl, private_key->heap, DYNAMIC_TYPE_ECC_BUFFER);
 #endif