diff --git a/applications/jpip/CHANGES b/applications/jpip/CHANGES
index d5cb0663..18173560 100644
--- a/applications/jpip/CHANGES
+++ b/applications/jpip/CHANGES
@@ -5,6 +5,9 @@ What's New for OpenJPIP
 ! : changed
 + : added
 
+December 24, 2011
+* [kaori] additional modification for the warning
+
 December 22, 2011
 * [kaori] fixed auxtrans_manager to enable MAC
 * [kaori] warnings due to disregarding return value are removed
diff --git a/applications/jpip/libopenjpip/faixbox_manager.c b/applications/jpip/libopenjpip/faixbox_manager.c
index c5be6413..dc943dce 100644
--- a/applications/jpip/libopenjpip/faixbox_manager.c
+++ b/applications/jpip/libopenjpip/faixbox_manager.c
@@ -51,7 +51,7 @@ faixbox_param_t * gene_faixbox( box_param_t *box)
   
   faix->version = fetch_DBox1byte( box, (pos+=1)-1);
   
-  if( faix->version < 0 || 3< faix->version){
+  if( 3< faix->version){
     fprintf( FCGI_stderr, "Error: version %d in faix box is reserved for ISO use.\n", faix->version);
     free(faix);
     return NULL;