diff --git a/common/ngram-cache.cpp b/common/ngram-cache.cpp
index a8b9b4694..20703d306 100644
--- a/common/ngram-cache.cpp
+++ b/common/ngram-cache.cpp
@@ -39,7 +39,7 @@ void llama_ngram_cache_update(llama_ngram_cache & ngram_cache, int ngram_min, in
                 const int64_t eta_min  = eta_ms / (60*1000);
                 const int64_t eta_s    = (eta_ms - 60*1000*eta_min) / 1000;
 
-                fprintf(stderr, "%s: %ld/%ld done, ETA: %02" PRId64 ":%02" PRId64 "\n", __func__, n_done, n_todo, eta_min, eta_s);
+                fprintf(stderr, "%s: %" PRId64 "/%" PRId64 " done, ETA: %02" PRId64 ":%02" PRId64 "\n", __func__, n_done, n_todo, eta_min, eta_s);
             }
         }
     }