diff --git a/launch_chffrplus.sh b/launch_chffrplus.sh
index e52fa6db4b..e3a1ab400c 100755
--- a/launch_chffrplus.sh
+++ b/launch_chffrplus.sh
@@ -195,6 +195,7 @@ function launch {
 
           echo "Restarting launch script ${LAUNCHER_LOCATION}"
           unset REQUIRED_NEOS_VERSION
+          unset AGNOS_VERSION
           exec "${LAUNCHER_LOCATION}"
         else
           echo "openpilot backup found, not updating"