diff --git a/scenarios/preset/helpers/frostfs_cli.py b/scenarios/preset/helpers/frostfs_cli.py
index 71331a3..5a7632d 100644
--- a/scenarios/preset/helpers/frostfs_cli.py
+++ b/scenarios/preset/helpers/frostfs_cli.py
@@ -2,7 +2,11 @@ import re
 from helpers.cmd import execute_cmd, log
 
 def create_container(endpoint, policy, wallet_file, wallet_config):
-    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} container create --wallet {wallet_file} --config {wallet_config} " \
+    if wallet_file:
+        wallet_file = "--wallet " + wallet_file
+    if wallet_config:
+        wallet_config = "--config " + wallet_config
+    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} container create {wallet_file} {wallet_config} " \
                f" --policy '{policy}' --basic-acl public-read-write --await"
 
     output, success = execute_cmd(cmd_line)
@@ -31,7 +35,11 @@ def create_container(endpoint, policy, wallet_file, wallet_config):
 
 def upload_object(container, payload_filepath, endpoint, wallet_file, wallet_config):
     object_name = ""
-    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} object put --file {payload_filepath} --wallet {wallet_file} --config {wallet_config} " \
+    if wallet_file:
+        wallet_file = "--wallet " + wallet_file
+    if wallet_config:
+        wallet_config = "--config " + wallet_config
+    cmd_line = f"frostfs-cli --rpc-endpoint {endpoint} object put --file {payload_filepath} {wallet_file} {wallet_config} " \
                f"--cid {container} --no-progress"
     output, success = execute_cmd(cmd_line)
 
@@ -56,7 +64,11 @@ def upload_object(container, payload_filepath, endpoint, wallet_file, wallet_con
 
 
 def get_object(cid, oid, endpoint, out_filepath, wallet_file, wallet_config):
-    cmd_line = f"frostfs-cli object get -r {endpoint} --cid {cid} --oid {oid} --wallet {wallet_file} --config {wallet_config} " \
+    if wallet_file:
+        wallet_file = "--wallet " + wallet_file
+    if wallet_config:
+        wallet_config = "--config " + wallet_config
+    cmd_line = f"frostfs-cli object get -r {endpoint} --cid {cid} --oid {oid} {wallet_file} {wallet_config} " \
                f"--file {out_filepath}"
 
     output, success = execute_cmd(cmd_line)
@@ -71,7 +83,11 @@ def get_object(cid, oid, endpoint, out_filepath, wallet_file, wallet_config):
 
 
 def search_object_by_id(cid, oid, endpoint, wallet_file, wallet_config, ttl=2):
-    cmd_line = f"frostfs-cli object search --ttl {ttl} -r {endpoint} --cid {cid} --oid {oid} --wallet {wallet_file} --config {wallet_config} "
+    if wallet_file:
+        wallet_file = "--wallet " + wallet_file
+    if wallet_config:
+        wallet_config = "--config " + wallet_config
+    cmd_line = f"frostfs-cli object search --ttl {ttl} -r {endpoint} --cid {cid} --oid {oid} {wallet_file} {wallet_config} "
 
     output, success = execute_cmd(cmd_line)