diff --git a/Zend/zend_long.h b/Zend/zend_long.h
index 3796f1c5aba..f2d3ee81bd6 100644
--- a/Zend/zend_long.h
+++ b/Zend/zend_long.h
@@ -19,6 +19,12 @@
 #ifndef ZEND_LONG_H
 #define ZEND_LONG_H
 
+#ifdef PHP_WIN32
+#include "config.w32.h"
+#else
+#include "php_config.h" // for SIZEOF_SIZE_T
+#endif
+
 #include <inttypes.h>
 #include <stdint.h>