diff --git a/os/kernel/src/chthreads.c b/os/kernel/src/chthreads.c
index 06451c18f..9d0bd84ae 100644
--- a/os/kernel/src/chthreads.c
+++ b/os/kernel/src/chthreads.c
@@ -97,7 +97,7 @@ Thread *init_thread(Thread *tp, tprio_t prio) {
 #if CH_USE_REGISTRY
   REG_INSERT(tp);
 #endif
-#if defined(THREAD_EXT_EXIT_HOOK)
+#if defined(THREAD_EXT_INIT_HOOK)
   THREAD_EXT_INIT_HOOK(tp);
 #endif
   return tp;