diff --git a/scanner.py b/scanner.py
index dcd9e767..69539af9 100644
--- a/scanner.py
+++ b/scanner.py
@@ -105,10 +105,17 @@ def extract_nodes(code_text):
             warnings.filterwarnings('ignore', category=DeprecationWarning)
             parsed_code = ast.parse(code_text)
 
-        assignments = (node for node in parsed_code.body if isinstance(node, ast.Assign))
+        # Support both ast.Assign and ast.AnnAssign (for type-annotated assignments)
+        assignments = (node for node in parsed_code.body if isinstance(node, (ast.Assign, ast.AnnAssign)))
 
         for assignment in assignments:
-            if isinstance(assignment.targets[0], ast.Name) and assignment.targets[0].id in ['NODE_CONFIG', 'NODE_CLASS_MAPPINGS']:
+            # Handle ast.AnnAssign (e.g., NODE_CLASS_MAPPINGS: Type = {...})
+            if isinstance(assignment, ast.AnnAssign):
+                if isinstance(assignment.target, ast.Name) and assignment.target.id in ['NODE_CONFIG', 'NODE_CLASS_MAPPINGS']:
+                    node_class_mappings = assignment.value
+                    break
+            # Handle ast.Assign (e.g., NODE_CLASS_MAPPINGS = {...})
+            elif isinstance(assignment.targets[0], ast.Name) and assignment.targets[0].id in ['NODE_CONFIG', 'NODE_CLASS_MAPPINGS']:
                 node_class_mappings = assignment.value
                 break
         else:
@@ -228,7 +235,8 @@ def scan_in_file(filename, is_builtin=False):
     with open(filename, encoding='utf-8', errors='ignore') as file:
         code = file.read()
 
-    pattern = r"_CLASS_MAPPINGS\s*=\s*{([^}]*)}"
+    # Support type annotations (e.g., NODE_CLASS_MAPPINGS: Type = {...}) and line continuations (\)
+    pattern = r"_CLASS_MAPPINGS\s*(?::\s*\w+\s*)?=\s*(?:\\\s*)?{([^}]*)}"
     regex = re.compile(pattern, re.MULTILINE | re.DOTALL)
 
     nodes = set()