diff --git a/doc/buildguide_en.md b/doc/buildguide_en.md
index da1bbec..f0dc571 100644
--- a/doc/buildguide_en.md
+++ b/doc/buildguide_en.md
@@ -50,7 +50,6 @@ cocot38mini is designed as a more compact version of cocot series, with column-s
 
   - Press the RESET button (SW39) while holding down the BOOT button (SW40) on the bottom side to enter boot loader mode.
   - The firmware is written by dragging and dropping the [.uf2](https://github.com/aki27kbd/cocot38mini/blob/main/firmware/aki27_cocot38mini_v2_vial.uf2) file into the drive named RPI-RP2.  
-  ![cocot38mini_bg_](/images/bg_firmware.jpg)  
 
 
   Keymap is editable from [vial](https://vial.rocks/).