diff --git a/usb-serial-console.md b/usb-serial-console.md
index 27fecc8..1470893 100644
--- a/usb-serial-console.md
+++ b/usb-serial-console.md
@@ -47,7 +47,7 @@ The terminal exposes the ChibiOS/RT Shell:
     * button 5: Select/Enter
     * button 6: DFU
     * button 7: Rotary Left
-    * button 8: Rotary Right?
+    * button 8: Rotary Right
 * ls
   * Lists files and directories.
 * rm