diff --git a/How-to-use-the-4G-extension.md b/How-to-use-the-4G-extension.md
index 9d4e1f2..5c8774e 100644
--- a/How-to-use-the-4G-extension.md
+++ b/How-to-use-the-4G-extension.md
@@ -4,7 +4,7 @@
 
 ### CM4 
 
-run `enable_4g_cm4.sh` or `uconsole-4g-cm enable`, depends on the version of your os image, both can do the same job
+run `enable_4g_cm4.sh` or `uconsole-4g-cm4 enable`, depends on the version of your os image, both can do the same job
 
 Please wait for it to complete, which may take about 20 seconds. Please be patient and try not press ctrl+c.