diff --git a/README.md b/README.md
index e62426b..fae1e07 100644
--- a/README.md
+++ b/README.md
@@ -144,7 +144,7 @@ To label the transcript with speaker ID's (set number of speakers if known e.g.
 
 To run on CPU instead of GPU (and for running on Mac OS X):
 
-    whisperx path/to/audio.wav --compute_type int8
+    whisperx path/to/audio.wav --compute_type int8 --device cpu
 
 ### Other languages