diff --git a/constants.py b/constants.py
index d9e110b73..ae6e719fb 100644
--- a/constants.py
+++ b/constants.py
@@ -47,3 +47,8 @@ KEY_TOKENIZER_SEP_ID  = "tokenizer.ggml.seperator_token_id"
 KEY_TOKENIZER_PAD_ID  = "tokenizer.ggml.padding_token_id"
 KEY_TOKENIZER_HF_JSON = "tokenizer.huggingface.json"
 KEY_TOKENIZER_RWKV    = "tokenizer.rwkv.world"
+KEY_TOKENIZER_BOS_ID  = "tokenizer.ggml.bos_token_id"
+KEY_TOKENIZER_EOS_ID  = "tokenizer.ggml.eos_token_id"
+KEY_TOKENIZER_UNK_ID  = "tokenizer.ggml.unknown_token_id"
+KEY_TOKENIZER_SEP_ID  = "tokenizer.ggml.separator_token_id"
+KEY_TOKENIZER_PAD_ID  = "tokenizer.ggml.padding_token_id"