diff --git a/bot/build.sh b/bot/build.sh
index 7c2c68df..7b414d18 100755
--- a/bot/build.sh
+++ b/bot/build.sh
@@ -209,7 +209,7 @@ echo "bot/build.sh: EESSI_OS_TYPE='${EESSI_OS_TYPE}'"
 declare -a COMMON_ARGS=()
 COMMON_ARGS+=("--verbose")
 COMMON_ARGS+=("--access" "rw")
-COMMON_ARGS+=("--mode" "run")
+COMMON_ARGS+=("--mode" "exec")
 [[ ! -z ${CONTAINER} ]] && COMMON_ARGS+=("--container" "${CONTAINER}")
 [[ ! -z ${HTTP_PROXY} ]] && COMMON_ARGS+=("--http-proxy" "${HTTP_PROXY}")
 [[ ! -z ${HTTPS_PROXY} ]] && COMMON_ARGS+=("--https-proxy" "${HTTPS_PROXY}")