diff --git a/src/enc.cc b/src/enc.cc
index 49833d6..7885c9d 100644
--- a/src/enc.cc
+++ b/src/enc.cc
@@ -836,9 +836,13 @@ static uint32_t QuantizeErrorNEON(const int16_t in[64],
     sum2 = vmlal_u16(sum2, vget_high_u16(G), vget_high_u16(G));
   }
   const uint32x4_t sum3 = vaddq_u32(sum1, sum2);
+#if defined(SJPEG_AARCH64)
+  const uint32_t err = vaddvq_u32(sum3);
+#else
   const uint64x2_t sum4 = vpaddlq_u32(sum3);
   const uint64_t sum5 = vgetq_lane_u64(sum4, 0) + vgetq_lane_u64(sum4, 1);
   const uint32_t err = (uint32_t)sum5;
+#endif
   return err;
 }
 
diff --git a/src/sjpegi.h b/src/sjpegi.h
index b378ce7..4bc2c56 100644
--- a/src/sjpegi.h
+++ b/src/sjpegi.h
@@ -34,6 +34,10 @@
 #define SJPEG_USE_NEON
 #endif
 
+#if defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
+#define SJPEG_AARCH64
+#endif
+
 #if defined(SJPEG_NEED_ASM_HEADERS)
 #if defined(SJPEG_USE_SSE2)
 #include <emmintrin.h>