diff --git a/libc/bionic/pthread_getschedparam.cpp b/libc/bionic/pthread_getschedparam.cpp
index ed1853b..765287f 100644
--- a/libc/bionic/pthread_getschedparam.cpp
+++ b/libc/bionic/pthread_getschedparam.cpp
@@ -28,9 +28,11 @@
 
 #include <errno.h>
 
+#include "private/bionic_defs.h"
 #include "private/ErrnoRestorer.h"
 #include "pthread_internal.h"
 
+__BIONIC_WEAK_FOR_NATIVE_BRIDGE
 int pthread_getschedparam(pthread_t t, int* policy, sched_param* param) {
   ErrnoRestorer errno_restorer;
 
diff --git a/libc/bionic/pthread_setschedparam.cpp b/libc/bionic/pthread_setschedparam.cpp
index 8a02728..656fe32 100644
--- a/libc/bionic/pthread_setschedparam.cpp
+++ b/libc/bionic/pthread_setschedparam.cpp
@@ -30,9 +30,11 @@
 #include <pthread.h>
 #include <sched.h>
 
+#include "private/bionic_defs.h"
 #include "private/ErrnoRestorer.h"
 #include "pthread_internal.h"
 
+__BIONIC_WEAK_FOR_NATIVE_BRIDGE
 int pthread_setschedparam(pthread_t t, int policy, const sched_param* param) {
   ErrnoRestorer errno_restorer;
 
@@ -42,6 +44,7 @@
   return (sched_setscheduler(tid, policy, param) == -1) ? errno : 0;
 }
 
+__BIONIC_WEAK_FOR_NATIVE_BRIDGE
 int pthread_setschedprio(pthread_t t, int priority) {
   ErrnoRestorer errno_restorer;