Missing logical operator (and) in tiff.c
diff --git a/coders/tiff.c b/coders/tiff.c
index 24eb3b7..229639d 100644
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -2666,7 +2666,7 @@
MagickFalse ? PHOTOMETRIC_MINISWHITE :
PHOTOMETRIC_MINISBLACK);
(void) TIFFSetField(tiff,TIFFTAG_SAMPLESPERPIXEL,1);
- if ((image_info->depth == 0) && (image->matte == MagickFalse))
+ if ((image_info->depth == 0) && (image->matte == MagickFalse) &&
(IsMonochromeImage(image,&image->exception) != MagickFalse))
{
status=SetQuantumDepth(image,quantum_info,1);