diff --git a/src/frostfs_testlib/load/load_config.py b/src/frostfs_testlib/load/load_config.py
index 357a129..e73eea7 100644
--- a/src/frostfs_testlib/load/load_config.py
+++ b/src/frostfs_testlib/load/load_config.py
@@ -245,7 +245,7 @@ class LoadParams:
             for meta_field in self._get_meta_fields(self)
             if self.scenario in meta_field.metadata["applicable_scenarios"]
             and meta_field.metadata["env_variable"]
-            and meta_field.value
+            and meta_field.value is not None
         }
 
         return env_vars
@@ -256,7 +256,7 @@ class LoadParams:
             for meta_field in self._get_meta_fields(self)
             if self.scenario in meta_field.metadata["applicable_scenarios"]
             and meta_field.metadata["preset_argument"]
-            and meta_field.value
+            and meta_field.value is not None
             and self._get_preset_argument(meta_field)
         ]