diff --git a/pjlib/include/pj/guid.h b/pjlib/include/pj/guid.h
index cabdcba..70a7572 100644
--- a/pjlib/include/pj/guid.h
+++ b/pjlib/include/pj/guid.h
@@ -1,4 +1,4 @@
-/* $Id:$ */
+/* $Id$ */
 /* 
  * Copyright (C)2003-2008 Benny Prijono <benny@prijono.org>
  *
@@ -62,7 +62,7 @@
 /**
  * Get #PJ_GUID_STRING_LENGTH constant.
  */
-PJ_DECL(unsigned) pj_GUID_STRING_LENGTH();
+PJ_DECL(unsigned) pj_GUID_STRING_LENGTH(void);
 
 /**
  * PJ_GUID_MAX_LENGTH specifies the maximum length of GUID string,
diff --git a/pjlib/include/pj/pool.h b/pjlib/include/pj/pool.h
index 14d0fc8..e8fa943 100644
--- a/pjlib/include/pj/pool.h
+++ b/pjlib/include/pj/pool.h
@@ -622,7 +622,7 @@
 /**
  * Get #PJ_NO_MEMORY_EXCEPTION constant.
  */ 
-PJ_DECL(int) pj_NO_MEMORY_EXCEPTION();
+PJ_DECL(int) pj_NO_MEMORY_EXCEPTION(void);
 
 /**
  * This global variable points to default memory pool factory policy.