diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index e5b77ad9779598c01c215536f25fe753545b0ae5..d817bf20f3d690af0eb3040de6457ca9e9ba41ef 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -817,7 +817,7 @@ bpf_object__init_internal_map(struct bpf_object *obj, struct bpf_map *map,
 		memcpy(*data_buff, data->d_buf, data->d_size);
 	}
 
-	pr_debug("map %ld is \"%s\"\n", map - obj->maps, map->name);
+	pr_debug("map %td is \"%s\"\n", map - obj->maps, map->name);
 	return 0;
 }