diff --git a/coders/jpeg.c b/coders/jpeg.c
index 07fb6b0..1a8dfde 100644
--- a/coders/jpeg.c
+++ b/coders/jpeg.c
@@ -1863,7 +1863,7 @@
           extent=(MagickSizeType) SiPrefixToDouble(option,100.0);
           (void) DeleteImageOption(jpeg_info,"jpeg:extent");
           (void) AcquireUniqueFilename(jpeg_image->filename);
-          maximum=100;
+          maximum=101;
           for (minimum=0; minimum != maximum; )
           {
             jpeg_image->quality=minimum+(maximum-minimum)/2;