diff --git a/mint/envs/general_env.py b/mint/envs/general_env.py
index 4312d4c..a78bbed 100644
--- a/mint/envs/general_env.py
+++ b/mint/envs/general_env.py
@@ -273,7 +273,7 @@ def step(self, action: Action, loaded=None) -> State:
 
     def reset(self) -> State:
         use_tool: bool = self.config["use_tools"]
-        if use_tool and len(self.tool_set) > 0:
+        if use_tool and len(self.tool_set) == 0:
             LOGGER.warning(
                 (
                     "No tool is provided when use_tools is True.\n"