diff --git a/bot/build.sh b/bot/build.sh
index 2a690ecb20..0d9a314a4c 100755
--- a/bot/build.sh
+++ b/bot/build.sh
@@ -272,9 +272,6 @@ BUILD_STEP_ARGS+=("--nvidia" "all")
 if [[ ! -z ${SHARED_FS_PATH} ]]; then
     BUILD_STEP_ARGS+=("--host-injections" "${SHARED_FS_PATH}/host-injections")
 fi
-if [[ ! -z ${LOWER_DIRS} ]]; then
-    BUILD_STEP_ARGS+=("--lower-dirs" "${LOWER_DIRS}")
-fi
 
 # create tmp file for output of build step
 build_outerr=$(mktemp build.outerr.XXXX)