diff --git a/metagpt/prompts/di/role_zero.py b/metagpt/prompts/di/role_zero.py
index 49ad7a05b..b6faa8cb3 100644
--- a/metagpt/prompts/di/role_zero.py
+++ b/metagpt/prompts/di/role_zero.py
@@ -152,7 +152,7 @@ Respond with a concise thought, then provide the appropriate response category:
 """
 
 
-QUICK_THINK_EXAMPLES ="""
+QUICK_THINK_EXAMPLES = """
 # Example
 
 1. Request: "How do I design an online document editing platform that supports real-time collaboration?"
@@ -190,4 +190,4 @@ Response Category: AMBIGUOUS.
 # Instruction
 """
 
-QUICK_THINK_PROMPT = QUICK_THINK_PROMPT.format(examples=QUICK_THINK_EXAMPLES)
\ No newline at end of file
+QUICK_THINK_PROMPT = QUICK_THINK_PROMPT.format(examples=QUICK_THINK_EXAMPLES)
diff --git a/metagpt/tools/libs/env.py b/metagpt/tools/libs/env.py
index 1fa265d07..c1757c5f9 100644
--- a/metagpt/tools/libs/env.py
+++ b/metagpt/tools/libs/env.py
@@ -31,6 +31,10 @@ async def default_get_env(key: str, app_name: str = None) -> str:
     if app_key in os.environ:
         return os.environ[app_key]
 
+    env_app_key = app_key.replace("-", "_")  # "-" is not supported by linux environment variable
+    if env_app_key in os.environ:
+        return os.environ[env_app_key]
+
     from metagpt.context import Context
 
     context = Context()