diff --git a/metagpt/config2.py b/metagpt/config2.py
index eb4c38368..09ff6d83f 100644
--- a/metagpt/config2.py
+++ b/metagpt/config2.py
@@ -132,10 +132,7 @@ class Config(CLIParams, YamlModel):
         self.other = other
 
     def get_other(self, key: str, default_value: str = None):
-        if default_value is None:
-            return self.other.get(key)
-        else:
-            return self.other.get(key, default_value)
+        return self.other.get(key, default_value)
 
     def get_openai_llm(self) -> Optional[LLMConfig]:
         """Get OpenAI LLMConfig by name. If no OpenAI, raise Exception"""