diff --git a/src/tests/ftest/util/server_utils_params.py b/src/tests/ftest/util/server_utils_params.py
index 135fbfb6c12..37591e79e39 100644
--- a/src/tests/ftest/util/server_utils_params.py
+++ b/src/tests/ftest/util/server_utils_params.py
@@ -434,8 +434,7 @@ class EngineYamlParameters(YamlParameters):
     REQUIRED_ENV_VARS = {
         "common": [
             "D_LOG_FILE_APPEND_PID=1",
-            "ABT_THREAD_STACKSIZE=32768",
-            "PMEMOBJ_CONF=sds.at_create=0",
+            "ABT_THREAD_STACKSIZE=24576",
             "COVFILE=/tmp/test.cov"],
         "ofi+tcp": [],
         "ofi+tcp;ofi_rxm": [],