diff --git a/sc2/src/sc2code/libs/callback/callback.c b/sc2/src/sc2code/libs/callback/callback.c
index 41a15b95e..ff2c37db8 100644
--- a/sc2/src/sc2code/libs/callback/callback.c
+++ b/sc2/src/sc2code/libs/callback/callback.c
@@ -20,6 +20,7 @@
 //#include <stdbool.h>
 #include "types.h"
 #include <stdlib.h>
+#include "port.h"
 
 typedef struct CallbackLink CallbackLink;
 
diff --git a/sc2/src/sc2code/libs/heap/heap.c b/sc2/src/sc2code/libs/heap/heap.c
index 1dfe96932..3f4b98cf4 100644
--- a/sc2/src/sc2code/libs/heap/heap.c
+++ b/sc2/src/sc2code/libs/heap/heap.c
@@ -21,7 +21,7 @@
 #include <assert.h>
 #include <math.h>
 #include <stdlib.h>
-
+#include "port.h"
 
 static inline size_t nextPower2(size_t x);
 
diff --git a/sc2/src/sc2code/libs/heap/heap.h b/sc2/src/sc2code/libs/heap/heap.h
index 2e46fb875..9b3efbf6a 100644
--- a/sc2/src/sc2code/libs/heap/heap.h
+++ b/sc2/src/sc2code/libs/heap/heap.h
@@ -22,6 +22,8 @@
 #include "types.h"
 
 #include <sys/types.h>
+#include <stdlib.h>
+
 
 typedef struct Heap Heap;
 typedef struct HeapValue HeapValue;