diff --git a/CHANGES b/CHANGES
index fb28c2cd..3773a586 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,9 @@ What's New for OpenJPEG
 ! : changed
 + : added
 
+June 3, 2011
++ [malaterre] adding partno and numpart info as part of the warning message (issue #69)
+
 May 23, 2011
 * [antonin] fixed a bug in autotools that prevented "make distcheck" to work properly (credit to Vincent Torri)
 + [antonin] added autotools as a build method for jpip (credit to Vincent Torri)
diff --git a/libopenjpeg/j2k.c b/libopenjpeg/j2k.c
index 3a783931..cbdee114 100644
--- a/libopenjpeg/j2k.c
+++ b/libopenjpeg/j2k.c
@@ -1282,7 +1282,7 @@ static void j2k_read_sot(opj_j2k_t *j2k) {
 	numparts = cio_read(cio, 1);
   
   if (partno >= numparts) {
-    opj_event_msg(j2k->cinfo, EVT_WARNING, "SOT marker inconsistency in tile %d: tile-part index greater than number of tile-parts\n", tileno);
+    opj_event_msg(j2k->cinfo, EVT_WARNING, "SOT marker inconsistency in tile %d: tile-part index greater (%d) than number of tile-parts (%d)\n", tileno, partno, numparts);
     numparts = partno+1;
   }