diff --git a/mindinsight/mindconverter/ast_edits.py b/mindinsight/mindconverter/ast_edits.py
index 36de6e7f5eb388ec333a3da01fbf726f71cf8bee..4e2e3e3e79167afacb1790c76fb20ae9e55f4c32 100644
--- a/mindinsight/mindconverter/ast_edits.py
+++ b/mindinsight/mindconverter/ast_edits.py
@@ -297,7 +297,7 @@ class AstEditVisitor(ast.NodeVisitor):
         if source_prefix:
             pos = len(source_prefix)
         source_code = pasta.dump(node)
-        return source_code[pos]
+        return source_code[pos:]
 
     def _replace_external_reference(self):
         """