diff --git a/coders/pcd.c b/coders/pcd.c
index 8d46eabdd4..6714a4f887 100644
--- a/coders/pcd.c
+++ b/coders/pcd.c
@@ -260,7 +260,7 @@ static MagickBooleanType DecodeImage(Image *image,unsigned char *luma,
   */
   plane=0;
   row=0;
-  sentinel=luma+3*(image->columns+1)*image->rows;
+  sentinel=luma+30*(image->columns+1)*image->rows;
   for (q=luma; EOFBlob(image) == MagickFalse; )
   {
     if (IsSync(sum) != 0)