diff --git a/scripts/alphanet.sh b/scripts/alphanet.sh
index 722bf1ac4..a151b5f33 100755
--- a/scripts/alphanet.sh
+++ b/scripts/alphanet.sh
@@ -352,25 +352,22 @@ stop_endorser() {
 run_client() {
     assert_node_uptodate
     declare -a container_args=();
-    tmpdir=$(exec_docker mktemp)
+    tmpdir="/tmp"
     for arg in "$@"; do
         if [[ "$arg" == 'container:'* ]]; then
             local_path="${arg#container:}"
             if [[ "$local_path" != '/'* ]]; then
                 local_path="$current_dir/$local_path"
             fi
-            docker exec "$docker_container" mkdir -p -m 777 "$tmpdir"
             file_name=$(basename "${local_path}")
             docker_path="$tmpdir/$file_name"
             docker cp "${local_path}" "$docker_node_container:${docker_path}"
-            exec_docker chmod 644 "${docker_path}"
-            container_args+=("file:$docker_path");
+            container_args+=("$docker_path");
         else
             container_args+=("${arg}");
         fi
     done
     exec_docker tezos-client "${container_args[@]}"
-    exec_docker rm -rf $tmpdir # Remove copied files
 }
 
 run_shell() {