diff --git a/icbench.c b/icbench.c
index b4c17cf..7d91145 100644
--- a/icbench.c
+++ b/icbench.c
@@ -44,6 +44,8 @@
 #define srand48(x)  srand(x)
 #define drand48()   ((double)(rand()) / RAND_MAX)
 #define __off64_t   _off64_t  
+  #elif defined(__APPLE__)
+#define fopen64(a,b) fopen(a,b)
   #endif 
 //---------------------------------------- Time -------------------------------
 typedef unsigned long long tm_t;
@@ -559,7 +561,7 @@ static void *amalloc(size_t size, size_t align) {
     #elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
   void *p; 
   return posix_memalign(&p, align, size)?NULL:p;
-    #elif __STDC_VERSION__ >= 201112L
+    #elif !defined(__APPLE__) && __STDC_VERSION__ >= 201112L
   return aligned_alloc(16, size);
     #else
   return malloc(size);
@@ -573,7 +575,7 @@ void afree(void *p) {
   _aligned_free(p);
     #elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
   free(p);
-    #elif __STDC_VERSION__ >= 201112L
+    #elif !defined(__APPLE__) && __STDC_VERSION__ >= 201112L
   aligned_free(p);
     #else
   free(size);