diff --git a/aos/linux_code/ipc_lib/BUILD b/aos/linux_code/ipc_lib/BUILD
index 98aca55..95b30ce 100644
--- a/aos/linux_code/ipc_lib/BUILD
+++ b/aos/linux_code/ipc_lib/BUILD
@@ -8,6 +8,9 @@
   hdrs = [
     'aos_sync.h',
   ],
+  linkopts = [
+    '-pthread',
+  ],
   deps = [
     '//aos/common/logging',
     '//aos/common:once',