diff --git a/utils/utils.h b/utils/utils.h
index 7d10cb04fe727fecf700f0c64768bc241003d4f6..8beffc8f6caf1227c7fd569bc77621e6faae47a8 100644
--- a/utils/utils.h
+++ b/utils/utils.h
@@ -9,6 +9,10 @@ typedef double real_t;
 typedef double rtime_t;
 typedef char * string_t;
 
+// SIMD alignment macros
+#define ALIGN_32 __attribute__((aligned(32)))
+#define ALIGN_16 __attribute__((aligned(16)))
+
 double timestamp(void);
 string_t markerName(string_t baseName, int n);
 int isPot2 (int n);