diff --git a/tests/stress/stress_tests.py b/tests/stress/stress_tests.py
index 378cb9a33f2fd0427e66913582956d253f98104e..329ae19d3628c48d38c5baa6319bc92379870b80 100644
--- a/tests/stress/stress_tests.py
+++ b/tests/stress/stress_tests.py
@@ -7,7 +7,7 @@ from ...utils.testcase import TestCase
 from ...utils.util import Logger
 from ..helper import KVSMultiClient, KVSTestFixture
 
-def make_random_key(prefix="key-", length=8):
+def make_random_key(prefix="key", length=8):
     chars = string.ascii_lowercase + string.digits
     random_part = ''.join(random.choice(chars) for _ in range(length))
     return f"{prefix}{random_part}"