diff --git a/ggml/src/gguf.cpp b/ggml/src/gguf.cpp
index 11cc2bd43..6d518022d 100644
--- a/ggml/src/gguf.cpp
+++ b/ggml/src/gguf.cpp
@@ -407,7 +407,7 @@ struct gguf_context * gguf_init_from_file_impl(FILE * file, struct gguf_init_par
             }
             for (size_t j = 0; ok && j < ctx->kv.size(); ++j) {
                 if (key == ctx->kv[j].key) {
-                    fprintf(stderr, "%s: duplicate key '%s' for tensors %" PRIi64 " and %" PRIi64 " \n", __func__, key.c_str(), j, i);
+                    fprintf(stderr, "%s: duplicate key '%s' for tensors %zu and %" PRIi64 " \n", __func__, key.c_str(), j, i);
                     ok = false;
                 }
             }
diff --git a/src/llama-model-loader.cpp b/src/llama-model-loader.cpp
index 33e4ae137..1c4e30878 100644
--- a/src/llama-model-loader.cpp
+++ b/src/llama-model-loader.cpp
@@ -554,7 +554,7 @@ llama_model_loader::llama_model_loader(const std::string & fname, bool use_mmap,
             const enum gguf_type type   = gguf_get_kv_type(meta.get(), i);
             const std::string type_name =
                 type == GGUF_TYPE_ARRAY
-                ? format("%s[%s,%d]", gguf_type_name(type), gguf_type_name(gguf_get_arr_type(meta.get(), i)), gguf_get_arr_n(meta.get(), i))
+                ? format("%s[%s,%zu]", gguf_type_name(type), gguf_type_name(gguf_get_arr_type(meta.get(), i)), gguf_get_arr_n(meta.get(), i))
                 : gguf_type_name(type);
 
             std::string value          = gguf_kv_to_str(meta.get(), i);