...

diff --git a/coders/tiff.c b/coders/tiff.c
index 17126822694dbee4835a9b370b3e6d8d5819f861..d9d523564fd538fec0939ad96f73f49c11edbe23 100644 (file)
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -1788,7 +1788,7 @@ RestoreMSCWarning
     if (TIFFIsTiled(tiff) != MagickFalse)
       {
         method=ReadRGBATileMethod;
-        if (bits_per_sample > 16)
+        if (samples_per_pixel == 1)
           method=ReadTileMethod;
       }
     quantum_info->endian=LSBEndian;