diff --git a/mmagic/structures/data_sample.py b/mmagic/structures/data_sample.py
index dcd4e20ce2..248e0cc994 100644
--- a/mmagic/structures/data_sample.py
+++ b/mmagic/structures/data_sample.py
@@ -244,6 +244,11 @@ def set_gt_label(
             self.gt_label = label
         return self
 
+    def set_gt_prompt(self, value: Union[str, Sequence[str]]) -> 'DataSample':
+        """Set label of ``gt_label``."""
+        self.prompt = value
+        return self
+
     @property
     def gt_label(self):
         """This the function to fetch gt label.