diff --git a/Readme.md b/Readme.md
index 820b411..7e6bfe1 100644
--- a/Readme.md
+++ b/Readme.md
@@ -31,7 +31,7 @@ make
 sudo ./rpiboot
 ```
 
-sudo isn't required if you have write permissions for the `/dev/bus/usb` device
+sudo isn't required if you have write permissions for the `/dev/bus/usb` device.
 
 ### macOS
 From a macOS machine, you can also run usbboot, just follow the same steps: