diff --git a/crates/emmylua_code_analysis/src/diagnostic/checker/incomplete_signature_doc.rs b/crates/emmylua_code_analysis/src/diagnostic/checker/incomplete_signature_doc.rs
index 9a9b0fca7..53b038b08 100644
--- a/crates/emmylua_code_analysis/src/diagnostic/checker/incomplete_signature_doc.rs
+++ b/crates/emmylua_code_analysis/src/diagnostic/checker/incomplete_signature_doc.rs
@@ -44,18 +44,26 @@ fn check_doc(
 
     let comment = get_closure_expr_comment(closure_expr);
 
-    if comment.is_none() && is_global {
+    let code = if is_global {
+        DiagnosticCode::MissingGlobalDoc
+    } else {
+        DiagnosticCode::IncompleteSignatureDoc
+    };
+
+    if comment.is_none() {
+        let message = if is_global {
+            t!(
+                "Missing comment for global function `%{name}`.",
+                name = function_name
+            )
+        } else {
+            t!(
+                "Missing comment for function `%{name}`.",
+                name = function_name
+            )
+        };
         if let Some(stat) = closure_expr.get_parent::<LuaStat>() {
-            context.add_diagnostic(
-                DiagnosticCode::MissingGlobalDoc,
-                stat.get_range(),
-                t!(
-                    "Missing comment for global function `%{name}`.",
-                    name = function_name
-                )
-                .to_string(),
-                None,
-            );
+            context.add_diagnostic(code, stat.get_range(), message.to_string(), None);
         }
         return Some(());
     }
@@ -64,12 +72,6 @@ fn check_doc(
         return Some(());
     };
 
-    let code = if is_global {
-        DiagnosticCode::MissingGlobalDoc
-    } else {
-        DiagnosticCode::IncompleteSignatureDoc
-    };
-
     let doc_param_names: HashSet<String> = comment
         .children::<LuaDocTagParam>()
         .filter_map(|param| {
@@ -84,11 +86,6 @@ fn check_doc(
         .map(|return_doc| return_doc.get_types().count())
         .sum();
 
-    // 如果文档中没有参数和返回值注解, 且不是全局函数, 则不检查
-    if doc_param_names.is_empty() && doc_return_len == 0 && !is_global {
-        return Some(());
-    }
-
     check_params(
         context,
         closure_expr,
diff --git a/crates/emmylua_code_analysis/src/diagnostic/test/incomplete_signature_doc_test.rs b/crates/emmylua_code_analysis/src/diagnostic/test/incomplete_signature_doc_test.rs
index 4986fd185..5a1df2ab0 100644
--- a/crates/emmylua_code_analysis/src/diagnostic/test/incomplete_signature_doc_test.rs
+++ b/crates/emmylua_code_analysis/src/diagnostic/test/incomplete_signature_doc_test.rs
@@ -24,12 +24,29 @@ mod tests {
         let mut ws = VirtualWorkspace::new();
         ws.enable_full_diagnostic();
 
+        // TODO: closures are not detected as functions in the semantic model
+        // assert!(!ws.check_code_for(
+        //     DiagnosticCode::MissingGlobalDoc,
+        //     r#"
+        //     local c = function(x, y)
+        //         return x + y
+        //     end
+        //     "#
+        // ));
+
         assert!(!ws.check_code_for(
             DiagnosticCode::IncompleteSignatureDoc,
             r#"
-            ---@param p number
-            local function FLPR3(p, e)
-                return 0
+            local function do_add(x, y)
+                return x + y
+            end
+            "#
+        ));
+
+        assert!(!ws.check_code_for(
+            DiagnosticCode::IncompleteSignatureDoc,
+            r#"
+            local function noop()
             end
             "#
         ));
@@ -38,24 +55,26 @@ mod tests {
             DiagnosticCode::IncompleteSignatureDoc,
             r#"
             ---@param p number
-            local function FLPR3(p)
+            local function FLPR3(p, e)
                 return 0
             end
             "#
         ));
 
-        assert!(ws.check_code_for(
+        assert!(!ws.check_code_for(
             DiagnosticCode::IncompleteSignatureDoc,
             r#"
+            ---@param p number
             local function FLPR3(p)
                 return 0
             end
             "#
         ));
-        assert!(ws.check_code_for(
+
+        assert!(!ws.check_code_for(
             DiagnosticCode::IncompleteSignatureDoc,
             r#"
-            ---
+            --- function without param signature
             local function FLPR3(p)
                 return 0
             end