diff --git a/.github/workflows/build_iar.yml b/.github/workflows/build_iar.yml
index 4b170f2bd..454ad12fe 100644
--- a/.github/workflows/build_iar.yml
+++ b/.github/workflows/build_iar.yml
@@ -93,7 +93,7 @@ jobs:
           echo >> flash.sh 'echo r >> flash.jlink'
           echo >> flash.sh 'echo go >> flash.jlink'
           echo >> flash.sh 'echo exit >> flash.jlink'
-          echo >> flash.sh 'cmdout=$(JLinkExe -device stm32l412kb -if swd -JTAGConf -1,-1 -speed auto -NoGui 1 -ExitOnError 1 -CommandFile flash.jlink)'
+          echo >> flash.sh 'cmdout=$(JLinkExe -USB 774470029 -device stm32l412kb -if swd -JTAGConf -1,-1 -speed auto -NoGui 1 -ExitOnError 1 -CommandFile flash.jlink)'
           echo >> flash.sh 'if (( $? )) ; then echo $cmdout ; fi'
           chmod +x flash.sh