diff --git a/docker/env/hydra.sh b/docker/env/hydra.sh
index 6a528b7033..852fb1a7f3 100755
--- a/docker/env/hydra.sh
+++ b/docker/env/hydra.sh
@@ -259,7 +259,7 @@ function run_in_docker () {
         -v /tmp:/tmp \
         -v /var/tmp:/var/tmp \
         -v "${HOME_DIR}:${HOME_DIR}" \
-        --tmpfs "${HOME_DIR}/.local:exec,uid=$(id -u ${USER}),gid=$(id -g ${USER})" \
+        --tmpfs "${HOME_DIR}/.local:exec,uid=$(id -u ${USER}),gid=$(id -g ${USER}),size=256m" \
         -w "${SCT_DIR}" \
         -e JOB_NAME="${JOB_NAME}" \
         -e BUILD_URL="${BUILD_URL}" \