diff --git a/main/config.w32.h b/main/config.w32.h
index 30b232b2b0e..d23e88e4cd3 100644
--- a/main/config.w32.h
+++ b/main/config.w32.h
@@ -42,6 +42,9 @@
 #define CONFIGURATION_FILE_PATH "php.ini"
 #define USE_CONFIG_FILE 1
 
+#define PHP_INCLUDE_PATH	NULL
+
+
 /* Undefine if you want stricter XML/SGML compliance by default */
 /* this disables "<?expression?>" and "<?=expression?>" */
 #define DEFAULT_SHORT_OPEN_TAG 1