diff --git a/CHANGES b/CHANGES
index 112bae1b..89ec382d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,9 @@ What's New for OpenJPEG
 ! : changed
 + : added
 
+November 21, 2011
+* [mickael] WIP: fix bug with windows platform and j2k_dump
+
 November 18, 2011
 * [mickael] WIP: fix bug with windows platform and j2k_to_image
 
diff --git a/applications/codec/j2k_dump.c b/applications/codec/j2k_dump.c
index 86b1bc96..887b1853 100644
--- a/applications/codec/j2k_dump.c
+++ b/applications/codec/j2k_dump.c
@@ -220,6 +220,7 @@ static int infile_format(const char *fname)
 	const char *s, *magic_s;
 	int ext_format, magic_format;
 	unsigned char buf[12];
+	unsigned int l_nb_read; 
 
 	reader = fopen(fname, "rb");
 
@@ -227,7 +228,7 @@ static int infile_format(const char *fname)
 		return -1;
 
 	memset(buf, 0, 12);
-	unsigned int l_nb_read = fread(buf, 1, 12, reader);
+	l_nb_read = fread(buf, 1, 12, reader);
 	fclose(reader);
 	if (l_nb_read != 12)
 		return -1;