diff --git a/src/os_heap.h b/src/os_heap.h
index e7ab7bc..57a2bc3 100644
--- a/src/os_heap.h
+++ b/src/os_heap.h
@@ -94,7 +94,7 @@ DSLIB_API int heap_report (const char * fname);
 
 #define HEAP_FREE(_mb) do{if(_mb) {heap_free((_mb)); (_mb) = NULL;}} while(0)
 
-#ifdef DISABLE_OS_HEAP
+//#ifdef DISABLE_OS_HEAP
   #undef HEAP_MALLOC
   #undef HEAP_CALLOC
   #undef HEAP_FREE
@@ -105,6 +105,6 @@ DSLIB_API int heap_report (const char * fname);
   
   #define HEAP_FREE(_mb) do {if (_mb) {free(_mb); (_mb) = NULL;}} while(0)
 
-#endif
+//#endif
 
 #endif /* __OS_HEAP_H_ASDFJLCXJVZXHCROEYUIODFGFMHFOIUHSDIHFZXKJCHGVLSDHFAJD */