diff --git OOps/pffft.c OOps/pffft.c
index e9696a7..3163cf8 100644
--- OOps/pffft.c
+++ OOps/pffft.c
@@ -154,7 +154,7 @@ typedef __m128 v4sf;
 /*
   ARM NEON support macros
 */
-#elif !defined(PFFFT_SIMD_DISABLE) && (defined(__arm__) || defined(IOS))
+#elif !defined(PFFFT_SIMD_DISABLE) && (defined(__ARM_NEON__) || defined(IOS))
 #  include <arm_neon.h>
 typedef float32x4_t v4sf;
 #  define SIMD_SZ 4