diff --git a/config.example.yaml b/config.example.yaml
index 52b311c..262f41b 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -27,7 +27,7 @@ summary_prompt: 'This is a summary of the chat history as a recap: '
 
 # ---- function-calling & agent ----
 # Controls the function calling feature. For setup instructions, visit https://github.com/sigoden/llm-functions
-function_calling: false
+function_calling: true
 # Regex for seletecting dangerous functions
 # User confirmation is required when executing these functions
 # e.g. 'execute_command|execute_js_code' 'execute_.*'
diff --git a/src/function.rs b/src/function.rs
index b91722c..8528af5 100644
--- a/src/function.rs
+++ b/src/function.rs
@@ -72,10 +72,10 @@ impl Functions {
             vec![]
         };
 
-        let func_names = declarations.iter().map(|v| v.name.clone()).collect();
+        let names = declarations.iter().map(|v| v.name.clone()).collect();
 
         Ok(Self {
-            names: func_names,
+            names,
             declarations,
         })
     }