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-rw-r--r--examples/server/server.cpp7
1 files changed, 6 insertions, 1 deletions
diff --git a/examples/server/server.cpp b/examples/server/server.cpp
index 919078f2..ec59307b 100644
--- a/examples/server/server.cpp
+++ b/examples/server/server.cpp
@@ -2038,7 +2038,12 @@ struct server_context {
prefix_tokens.insert(prefix_tokens.begin(), llama_token_bos(model)); // always add BOS
prefix_tokens.insert(prefix_tokens.end(), llama_token_suffix(model));
prefix_tokens.insert(prefix_tokens.end(), suffix_tokens.begin(), suffix_tokens.end());
- prefix_tokens.push_back(llama_token_middle(model));
+
+ const llama_token middle_token = llama_token_middle(model);
+ if (middle_token >= 0) {
+ prefix_tokens.push_back(middle_token);
+ }
+
prompt_tokens = prefix_tokens;
} else {
prompt_tokens = tokenize(slot.prompt, system_prompt.empty()); // add BOS if there isn't system prompt