diff --git a/common/ngram-cache.cpp b/common/ngram-cache.cpp
index 0807ff6fb6ba4..a8b9b4694f993 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: %02ld:%02ld\n", __func__, n_done, n_todo, eta_min, eta_s);
+                fprintf(stderr, "%s: %ld/%ld done, ETA: %02" PRId64 ":%02" PRId64 "\n", __func__, n_done, n_todo, eta_min, eta_s);
             }
         }
     }
diff --git a/examples/lookup/lookup-stats.cpp b/examples/lookup/lookup-stats.cpp
index d58eec18c067f..31f227773de6f 100644
--- a/examples/lookup/lookup-stats.cpp
+++ b/examples/lookup/lookup-stats.cpp
@@ -132,7 +132,7 @@ int main(int argc, char ** argv){
             const int64_t eta_min  = eta_ms / (60*1000);
             const int64_t eta_s    = (eta_ms - 60*1000*eta_min) / 1000;
 
-            LOG_TEE("%d/%d done, ETA: %02ld:%02ld\n", i_start, n_input, eta_min, eta_s);
+            LOG_TEE("lookup-stats: %d/%d done, ETA: %02" PRId64 ":%02" PRId64 "\n", i_start, n_input, eta_min, eta_s);
         }
 
         // After each chunk, update the dynamic ngram cache with the context ngram cache: