diff --git a/WHATS_NEW b/WHATS_NEW
index c3bac479c..008506d53 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,6 @@
 Version 2.02.96 - 
 ================================
+  Fix warn msg for thin pool chunk size and update man for chunksize (2.02.89).
 
 Version 2.02.95 - 6th March 2012
 ================================
diff --git a/man/lvcreate.8.in b/man/lvcreate.8.in
index e8520d99f..1090a1e76 100644
--- a/man/lvcreate.8.in
+++ b/man/lvcreate.8.in
@@ -120,11 +120,14 @@ If clustered locking is enabled, \fB-a\fIey\fR will activate exclusively
 on one node and \fB-a\fIly\fR will activate only on the local node.
 .TP
 .BR \-c ", " \-\-chunksize " " \fIChunkSize
-Power of 2 chunk size in sector units (512b).
-For snapshot logical volume the value must be between 8 (4KB) and 1024 (512KB)
-and the default value is 8.
-For thin pool logical volume the value must be between 128 (64KB) and
-2097152 (1MB) and the default value is 128.
+Gives the size of chunk for snapshot and thin pool logical volumes.
+For snapshots the value must be power of 2 between 4KiB and 512KiB
+and the default value is 4.
+For thin pools the value must be power of 2 between 64KiB and
+1048576KiB and the default value starts with 64 and scales
+up to fit the pool metadata size within 128MB, 
+if the poolmetadata size is not specified.
+Default unit is in kilobytes.
 .TP
 .BR \-C ", " \-\-contiguous " {" \fIy | \fIn }
 Sets or resets the contiguous allocation policy for
diff --git a/tools/lvcreate.c b/tools/lvcreate.c
index def36b975..aa2d80753 100644
--- a/tools/lvcreate.c
+++ b/tools/lvcreate.c
@@ -772,13 +772,15 @@ static int _lvcreate_params(struct lvcreate_params *lp,
 				return 0;
 			}
 		} else {
-			lp->chunk_size = arg_uint_value(cmd, chunksize_ARG, DM_THIN_MIN_DATA_BLOCK_SIZE);
+			lp->chunk_size = arg_uint_value(cmd, chunksize_ARG,
+							DM_THIN_MIN_DATA_BLOCK_SIZE);
 			if ((lp->chunk_size < DM_THIN_MIN_DATA_BLOCK_SIZE) ||
 			    (lp->chunk_size > DM_THIN_MAX_DATA_BLOCK_SIZE) ||
 			    (lp->chunk_size & (lp->chunk_size - 1))) {
 				log_error("Chunk size must be a power of 2 in the "
-					  "range %uK to %uK", (DM_THIN_MIN_DATA_BLOCK_SIZE / 2),
-					  (DM_THIN_MIN_DATA_BLOCK_SIZE / 2));
+					  "range %uK to %uK",
+					  (DM_THIN_MIN_DATA_BLOCK_SIZE / 2),
+					  (DM_THIN_MAX_DATA_BLOCK_SIZE / 2));
 				return 0;
 			}
 		}