diff --git a/wand/mogrify.c b/wand/mogrify.c
index 8abab0b..a0ddab3 100644
--- a/wand/mogrify.c
+++ b/wand/mogrify.c
@@ -3327,8 +3327,8 @@
" improve contrast by `stretching with saturation'",
"-liquid-rescale geometry",
" rescale image with seam-carving",
- "-median radius apply a median filter to the image",
- "-mode radius make each pixel the 'predominate color' of the neighborhood",
+ "-median geometry apply a median filter to the image",
+ "-mode geometry make each pixel the 'predominate color' of the neighborhood",
"-modulate value vary the brightness, saturation, and hue",
"-monochrome transform image to black and white",
"-morphology method kernel",
@@ -3336,7 +3336,7 @@
"-motion-blur geometry",
" simulate motion blur",
"-negate replace every pixel with its complementary color ",
- "-noise radius add or reduce noise in an image",
+ "-noise geometry add or reduce noise in an image",
"-normalize transform image to span the full range of colors",
"-opaque color change this color to the fill color",
"-ordered-dither NxN",