diff --git a/cli/xsum_sanity_check.c b/cli/xsum_sanity_check.c
index 98014d59..95e5375e 100644
--- a/cli/xsum_sanity_check.c
+++ b/cli/xsum_sanity_check.c
@@ -342,7 +342,7 @@ static XSUM_U32 XSUM_rand(void)
  * Technically, XXH3_64bits_update is identical to XXH3_128bits_update as of
  * v0.8.0, but we treat them as separate.
  */
-typedef XXH_errorcode (*XSUM_XXH3_update_t)(XXH3_state_t* state, const void* input, size_t length);
+typedef XXH_errorcode (*XSUM_XXH3_update_t)(XXH_NOESCAPE XXH3_state_t* state, XXH_NOESCAPE const void* input, size_t length);
 
 /*
  * Runs the passed XXH3_update variant on random lengths. This is to test the
diff --git a/xxhash.h b/xxhash.h
index 9f5eef77..95ae101a 100644
--- a/xxhash.h
+++ b/xxhash.h
@@ -1363,7 +1363,7 @@ XXH_PUBLIC_API XXH_errorcode XXH3_64bits_update (XXH_NOESCAPE XXH3_state_t* stat
  *
  * @see @ref streaming_example "Streaming Example"
  */
-XXH_PUBLIC_API XXH_PUREF XXH64_hash_t  XXH3_64bits_digest (XXH_NOESCAPE const XXH3_state_t* statePtr);
+XXH_PUBLIC_API XXH_PUREF XXH64_hash_t XXH3_64bits_digest (XXH_NOESCAPE const XXH3_state_t* statePtr);
 #endif /* !XXH_NO_STREAM */
 
 /* note : canonical representation of XXH3 is the same as XXH64