diff --git a/cc/ndk_library.go b/cc/ndk_library.go
index 1b09f88c2..3ae445255 100644
--- a/cc/ndk_library.go
+++ b/cc/ndk_library.go
@@ -53,6 +53,7 @@ var (
 		"OpenMAXAL",
 		"OpenSLES",
 		"stdc++",
+		"sync",
 		"vulkan",
 		"z",
 	}