diff --git a/libtiff/tif_tile.c b/libtiff/tif_tile.c
index 063a663a..7e8dbfb5 100644
--- a/libtiff/tif_tile.c
+++ b/libtiff/tif_tile.c
@@ -1,4 +1,4 @@
-/* $Id: tif_tile.c,v 1.11 2005-12-21 12:23:13 joris Exp $ */
+/* $Id: tif_tile.c,v 1.12 2006-02-09 16:15:43 dron Exp $ */
 
 /*
  * Copyright (c) 1991-1997 Sam Leffler
@@ -107,24 +107,32 @@ TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s)
 	TIFFDirectory *td = &tif->tif_dir;
 
 	if (x >= td->td_imagewidth) {
-		TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%lu: Col out of range, max %lu",
-		    (unsigned long) x, (unsigned long) td->td_imagewidth);
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			     "%lu: Col out of range, max %lu",
+			     (unsigned long) x,
+			     (unsigned long) (td->td_imagewidth - 1));
 		return (0);
 	}
 	if (y >= td->td_imagelength) {
-		TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%lu: Row out of range, max %lu",
-		    (unsigned long) y, (unsigned long) td->td_imagelength);
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			     "%lu: Row out of range, max %lu",
+			     (unsigned long) y,
+			     (unsigned long) (td->td_imagelength - 1));
 		return (0);
 	}
 	if (z >= td->td_imagedepth) {
-		TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%lu: Depth out of range, max %lu",
-		    (unsigned long) z, (unsigned long) td->td_imagedepth);
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			     "%lu: Depth out of range, max %lu",
+			     (unsigned long) z,
+			     (unsigned long) (td->td_imagedepth - 1));
 		return (0);
 	}
 	if (td->td_planarconfig == PLANARCONFIG_SEPARATE &&
 	    s >= td->td_samplesperpixel) {
-		TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%lu: Sample out of range, max %lu",
-		    (unsigned long) s, (unsigned long) td->td_samplesperpixel);
+		TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+			     "%lu: Sample out of range, max %lu",
+			     (unsigned long) s,
+			     (unsigned long) (td->td_samplesperpixel - 1));
 		return (0);
 	}
 	return (1);