diff --git a/ppocr/modeling/heads/rec_srn_head.py b/ppocr/modeling/heads/rec_srn_head.py
index 8aaf65e1ae018dd410bbc05d0d7dcac821d062a3..d2c7fc028d28c79057708d4e6f306c417ba6306a 100644
--- a/ppocr/modeling/heads/rec_srn_head.py
+++ b/ppocr/modeling/heads/rec_srn_head.py
@@ -246,7 +246,7 @@ class SRNHead(nn.Layer):
             num_encoder_tus=self.num_encoder_TUs,
             num_decoder_tus=self.num_decoder_TUs,
             hidden_dims=self.hidden_dims)
-        self.vsfd = VSFD(in_channels=in_channels)
+        self.vsfd = VSFD(in_channels=in_channels, char_num=self.char_num)
 
         self.gsrm.wrap_encoder1.prepare_decoder.emb0 = self.gsrm.wrap_encoder0.prepare_decoder.emb0