diff --git a/examples/server/server.cpp b/examples/server/server.cpp
index 637f6d6c2..157c98c21 100644
--- a/examples/server/server.cpp
+++ b/examples/server/server.cpp
@@ -1008,7 +1008,7 @@ static json format_timings(llama_server_context &llama)
     assert(timings.n_eval == llama.num_tokens_predicted);
 
     return json{
-        {"prompt_n", timings.n_eval},
+        {"prompt_n", timings.n_p_eval},
         {"prompt_ms", timings.t_p_eval_ms},
         {"prompt_per_token_ms", timings.t_p_eval_ms / timings.n_p_eval},
         {"prompt_per_second", 1e3 / timings.t_p_eval_ms * timings.n_p_eval},