diff --git a/app/search/search_utils.py b/app/search/search_utils.py
index 73eb8300..c648e7a9 100644
--- a/app/search/search_utils.py
+++ b/app/search/search_utils.py
@@ -149,6 +149,7 @@ def parse_python_file(file_full_path: str) -> tuple[list, dict, list] | None:
     # (3) get top-level functions in the file (exclues functions defined in classes)
     top_level_funcs = []
 
+    function_nodes_in_class = []
     for node in ast.walk(tree):
         if isinstance(node, ast.ClassDef):
             ## class part (1): collect class info
@@ -159,14 +160,15 @@ def parse_python_file(file_full_path: str) -> tuple[list, dict, list] | None:
             classes.append((class_name, start_lineno, end_lineno))
 
             ## class part (2): collect function info inside this class
-            class_funcs = [
-                (n.name, n.lineno, n.end_lineno)
-                for n in ast.walk(node)
-                if isinstance(n, ast.FunctionDef)
-            ]
+            class_funcs = []
+            for n in ast.walk(node):
+                if isinstance(n, ast.FunctionDef):
+                    class_funcs.append((n.name, n.lineno, n.end_lineno))
+                    function_nodes_in_class.append(n)
             class_to_funcs[class_name] = class_funcs
 
-        elif isinstance(node, ast.FunctionDef):
+        # top-level functions, excluding functions defined in classes
+        elif isinstance(node, ast.FunctionDef) and node not in function_nodes_in_class:
             function_name = node.name
             start_lineno = node.lineno
             end_lineno = node.end_lineno