diff --git a/README.md b/README.md
index 132f276..750392c 100644
--- a/README.md
+++ b/README.md
@@ -20,16 +20,16 @@ milkbucket reads a PCM stream from standard input to generate visualizations.
 If you have an audio file and a preset in mind, you can use `ffmpeg` to
 generate the PCM stream, then pipe to milkbucket, like so:
 ```
-ffmpeg -i $audio -ar 44100 -f s16le - | ./milkbucket -p $preset
+ffmpeg -i $audio -ar 44100 -f s16le - | ./milkbucket $preset
 ```
-Note that you can pass in multiple presets with multiple `-p` flags, then use
-the arrow keys to cycle through the presets while running.
+Note that you can pass in multiple presets, then use the arrow keys to cycle
+through the presets while running.
 
 Note that neither of these commands (ffmpeg or milkbucket) will output any
 audio! If you want to hear the audio at the same time (and assuming your
 machine uses pipewire), run:
 ```
-ffmpeg -i $audio -ar 44100 -f s16le - | tee >(pw-play --rate=44100 --format=s16 -) | ./milkbucket -p $preset
+ffmpeg -i $audio -ar 44100 -f s16le - | tee >(pw-play --rate=44100 --format=s16 -) | ./milkbucket $preset
 ```
 (If you don't use pipewire try using `aplay` instead of `pw-play`, or some
 other command for playing PCM streams.)
@@ -37,5 +37,5 @@ other command for playing PCM streams.)
 You can also generate a visualization from your system sound. Assuming pipewire
 again, and that you have audio coming from Firefox, run:
 ```
-pw-record --target Firefox - | ./milkbucket -p $preset
+pw-record --target Firefox - | ./milkbucket $preset
 ```