diff --git a/mecab/mecab7.c b/mecab/mecab7.c
index 1a9105a..d05418b 100644
--- a/mecab/mecab7.c
+++ b/mecab/mecab7.c
@@ -32,7 +32,7 @@
 #include "php_mecab_compat7.h"
 
 #define PATHBUFSIZE (MAXPATHLEN + 3)
-
+#define ulong unsigned long
 /* {{{ globals */
 
 static ZEND_DECLARE_MODULE_GLOBALS(mecab)