diff --git a/pendulum_utils/include/pendulum_utils/rt_thread.hpp b/pendulum_utils/include/pendulum_utils/rt_thread.hpp
index b1261ead..ddcdcc7f 100644
--- a/pendulum_utils/include/pendulum_utils/rt_thread.hpp
+++ b/pendulum_utils/include/pendulum_utils/rt_thread.hpp
@@ -34,9 +34,9 @@ namespace pendulum
 {
 namespace utils
 {
-int set_thread_priority(size_t sched_priority, int policy);
+int set_thread_priority(pid_t pid, size_t sched_priority, int policy);
 int set_this_thread_priority(size_t sched_priority, int policy);
-int set_thread_cpu_affinity(uint32_t cpu_bit_mask);
+int set_thread_cpu_affinity(pid_t pid, uint32_t cpu_bit_mask);
 int set_this_thread_cpu_affinity(uint32_t cpu_bit_mask);
 }  // namespace utils
 }  // namespace pendulum