diff --git a/crates/language_models/src/provider/copilot_chat.rs b/crates/language_models/src/provider/copilot_chat.rs
index f1cf43c061..94b45e4541 100644
--- a/crates/language_models/src/provider/copilot_chat.rs
+++ b/crates/language_models/src/provider/copilot_chat.rs
@@ -526,7 +526,9 @@ impl CopilotChatLanguageModel {
                 function: copilot::copilot_chat::Function {
                     name: "noop".to_string(),
                     description: "No operation".to_string(),
-                    parameters: serde_json::json!({}),
+                    parameters: serde_json::json!({
+                        "type": "object"
+                    }),
                 },
             });
         }