diff --git a/Jenkinsfile b/Jenkinsfile
index 25444497..f9de2b8c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -27,7 +27,7 @@ rm -rf $CH_PATH
 git clone -b $BRANCH --single-branch https://github.com/ChibiOS/ChibiOS.git $CH_PATH
 
 cd $CH_PATH/ext
-z7 x -y *.7z'''
+7z x -y *.7z'''
         sh 'CH_PATH=$WORKSPACE/ChibiOS CHC_PATH=$WORKSPACE ./tools/chbuild.sh ./testhal/STM32/'
         sh 'CH_PATH=$WORKSPACE/ChibiOS CHC_PATH=$WORKSPACE ./tools/chbuild.sh ./demos/STM32/'
       }