diff --git a/Zend/zend_ptr_stack.c b/Zend/zend_ptr_stack.c
index 80c77e11d73..acecae477e3 100644
--- a/Zend/zend_ptr_stack.c
+++ b/Zend/zend_ptr_stack.c
@@ -17,8 +17,8 @@
    +----------------------------------------------------------------------+
 */
 
-#include "zend.h"
 #include "zend_ptr_stack.h"
+
 #include <stdarg.h>
 
 ZEND_API void zend_ptr_stack_init_ex(zend_ptr_stack *stack, bool persistent)
diff --git a/Zend/zend_ptr_stack.h b/Zend/zend_ptr_stack.h
index 1126da5800d..b1dc6c29af3 100644
--- a/Zend/zend_ptr_stack.h
+++ b/Zend/zend_ptr_stack.h
@@ -20,6 +20,9 @@
 #ifndef ZEND_PTR_STACK_H
 #define ZEND_PTR_STACK_H
 
+#include "zend_alloc.h" // for safe_perealloc()
+#include "zend_portability.h" // for BEGIN_EXTERN_C
+
 typedef struct _zend_ptr_stack {
 	int top, max;
 	void **elements;