diff --git a/wolfcrypt/src/sp_int.c b/wolfcrypt/src/sp_int.c
index ff8f2e9fe..c5274e196 100644
--- a/wolfcrypt/src/sp_int.c
+++ b/wolfcrypt/src/sp_int.c
@@ -12290,6 +12290,7 @@ int sp_mont_norm(sp_int* norm, sp_int* m)
     if ((err == MP_OKAY) && (bits == SP_WORD_SIZE)) {
         norm->dp[0] %= m->dp[0];
     }
+    sp_clamp(norm);
 
     return err;
 }