diff --git a/wand/mogrify.c b/wand/mogrify.c
index 1f043d0..6d88cd2 100644
--- a/wand/mogrify.c
+++ b/wand/mogrify.c
@@ -3710,7 +3710,7 @@
"-median radius apply a median filter to the image",
"-modulate value vary the brightness, saturation, and hue",
"-monochrome transform image to black and white",
- "-morphology method[:iterations] kernel",
+ "-morphology method kernel",
" apply a morphology method to the image",
"-motion-blur geometry",
" simulate motion blur",
@@ -3859,7 +3859,7 @@
"-page geometry size and location of an image canvas (setting)",
"-ping efficiently determine image attributes",
"-pointsize value font point size",
- "-precision value set the maximum number of significant digits to be printed",
+ "-precision value maximum number of significant digits to print",
"-preview type image preview type",
"-quality value JPEG/MIFF/PNG compression level",
"-quiet suppress all warning messages",