diff --git a/lib/libthr/thread/thr_cancel.c b/lib/libthr/thread/thr_cancel.c
index 0d6e393310f3..4194fe180565 100644
--- a/lib/libthr/thread/thr_cancel.c
+++ b/lib/libthr/thread/thr_cancel.c
@@ -43,6 +43,8 @@ __weak_reference(_thr_setcanceltype, pthread_setcanceltype);
 __weak_reference(_thr_setcanceltype, _pthread_setcanceltype);
 __weak_reference(_Tthr_testcancel, pthread_testcancel);
 __weak_reference(_Tthr_testcancel, _pthread_testcancel);
+__weak_reference(_Tthr_cancel_enter, _pthread_cancel_enter);
+__weak_reference(_Tthr_cancel_leave, _pthread_cancel_leave);
 
 static inline void
 testcancel(struct pthread *curthread)
@@ -173,13 +175,13 @@ _thr_cancel_leave(struct pthread *curthread, int maycancel)
 }
 
 void
-_pthread_cancel_enter(int maycancel)
+_Tthr_cancel_enter(int maycancel)
 {
 	_thr_cancel_enter2(_get_curthread(), maycancel);
 }
 
 void
-_pthread_cancel_leave(int maycancel)
+_Tthr_cancel_leave(int maycancel)
 {
 	_thr_cancel_leave(_get_curthread(), maycancel);
 }
diff --git a/lib/libthr/thread/thr_init.c b/lib/libthr/thread/thr_init.c
index 914d51363bd7..9c5d1ede2d30 100644
--- a/lib/libthr/thread/thr_init.c
+++ b/lib/libthr/thread/thr_init.c
@@ -265,8 +265,8 @@ static pthread_func_t jmp_table[][2] = {
 	[PJT_TESTCANCEL] = {DUAL_ENTRY(_Tthr_testcancel)},
 	[PJT_CLEANUP_POP_IMP] = {DUAL_ENTRY(__thr_cleanup_pop_imp)},
 	[PJT_CLEANUP_PUSH_IMP] = {DUAL_ENTRY(__thr_cleanup_push_imp)},
-	[PJT_CANCEL_ENTER] = {DUAL_ENTRY(_thr_cancel_enter)},
-	[PJT_CANCEL_LEAVE] = {DUAL_ENTRY(_thr_cancel_leave)},
+	[PJT_CANCEL_ENTER] = {DUAL_ENTRY(_Tthr_cancel_enter)},
+	[PJT_CANCEL_LEAVE] = {DUAL_ENTRY(_Tthr_cancel_leave)},
 	[PJT_MUTEX_CONSISTENT] = {DUAL_ENTRY(_Tthr_mutex_consistent)},
 	[PJT_MUTEXATTR_GETROBUST] = {DUAL_ENTRY(_thr_mutexattr_getrobust)},
 	[PJT_MUTEXATTR_SETROBUST] = {DUAL_ENTRY(_thr_mutexattr_setrobust)},
diff --git a/lib/libthr/thread/thr_private.h b/lib/libthr/thread/thr_private.h
index 5bbe05a6a4e9..ed09cd2bf50b 100644
--- a/lib/libthr/thread/thr_private.h
+++ b/lib/libthr/thread/thr_private.h
@@ -1022,6 +1022,8 @@ void __thr_cleanup_pop_imp(int);
 void _thr_cleanup_push(void (*)(void *), void *);
 void _thr_cleanup_pop(int);
 void _Tthr_testcancel(void);
+void _Tthr_cancel_enter(int);
+void _Tthr_cancel_leave(int);
 int _thr_cancel(pthread_t);
 int _thr_atfork(void (*)(void), void (*)(void), void (*)(void));
 int _thr_attr_destroy(pthread_attr_t *);