diff --git a/cpu/cortexm_common/thread_arch.c b/cpu/cortexm_common/thread_arch.c
index 0b4352b658..8311003dbc 100644
--- a/cpu/cortexm_common/thread_arch.c
+++ b/cpu/cortexm_common/thread_arch.c
@@ -226,7 +226,7 @@ char *thread_stack_init(thread_task_func_t task_func,
 void thread_stack_print(void)
 {
     int count = 0;
-    uint32_t *sp = (uint32_t *)sched_active_thread->sp;
+    uint32_t *sp = (uint32_t *)thread_get_active()->sp;
 
     printf("printing the current stack of thread %" PRIkernel_pid "\n",
            thread_getpid());