diff --git a/clay.h b/clay.h
index 1423aaa..9f19d5d 100644
--- a/clay.h
+++ b/clay.h
@@ -1392,6 +1392,7 @@ uint64_t Clay__HashData(const uint8_t* data, size_t length) {
     Clay__SIMDARXMix(&v2, &v3);
     v0 = _mm_add_epi64(v0, v2);
     v1 = _mm_add_epi64(v1, v3);
+    v0 = _mm_add_epi64(v0, v1);
 
     uint64_t result[2];
     _mm_storeu_si128((__m128i*)result, v0);
@@ -1445,6 +1446,7 @@ uint64_t Clay__HashData(const uint8_t* data, size_t length) {
     Clay__SIMDARXMix(&v2, &v3);
     v0 = vaddq_u64(v0, v2);
     v1 = vaddq_u64(v1, v3);
+    v0 = vaddq_u64(v0, v1);
 
     uint64_t result[2];
     vst1q_u64(result, v0);