diff --git a/NKF.python/ext/NKF_python.c b/NKF.python/ext/NKF_python.c
index b17229e..7c98c2e 100644
--- a/NKF.python/ext/NKF_python.c
+++ b/NKF.python/ext/NKF_python.c
@@ -80,8 +80,8 @@ pynkf_putchar(int c)
 }
 
 #define PERL_XS 1
-#include "nkf/utf8tbl.c"
-#include "nkf/nkf.c"
+#include "../../utf8tbl.c"
+#include "../../nkf.c"
 
 static PyObject *
 pynkf_convert(unsigned char* str, Py_ssize_t strlen, char* opts, Py_ssize_t optslen)