diff --git a/tools/perplexity/perplexity.cpp b/tools/perplexity/perplexity.cpp
index 027cd53f2..92f88306c 100644
--- a/tools/perplexity/perplexity.cpp
+++ b/tools/perplexity/perplexity.cpp
@@ -923,7 +923,7 @@ static void hellaswag_score(llama_context * ctx, const common_params & params) {
         }
 
         if (i0 == i1) {
-            LOG_ERR("%s : task %zu does not fit in the context window (requires %lu tokens)\n", __func__, i0, hs_data[i0].required_tokens);
+            LOG_ERR("%s : task %zu does not fit in the context window (requires %zu tokens)\n", __func__, i0, hs_data[i0].required_tokens);
             return;
         }
 
@@ -1216,7 +1216,7 @@ static void winogrande_score(llama_context * ctx, const common_params & params)
         }
 
         if (i0 == i1) {
-            LOG_ERR("%s : task %zu does not fit in the context window (requires %lu tokens)\n", __func__, i0, data[i0].required_tokens);
+            LOG_ERR("%s : task %zu does not fit in the context window (requires %zu tokens)\n", __func__, i0, data[i0].required_tokens);
             return;
         }
 
@@ -1595,7 +1595,7 @@ static void multiple_choice_score(llama_context * ctx, const common_params & par
         }
 
         if (i0 == i1) {
-            LOG_ERR("%s : task %zu does not fit in the context window (requires %lu tokens)\n", __func__, i0, tasks[i0].required_tokens);
+            LOG_ERR("%s : task %zu does not fit in the context window (requires %zu tokens)\n", __func__, i0, tasks[i0].required_tokens);
             return;
         }