diff --git a/lld/MachO/CMakeLists.txt b/lld/MachO/CMakeLists.txt
index 9264d47e7babcc..ea26889267f755 100644
--- a/lld/MachO/CMakeLists.txt
+++ b/lld/MachO/CMakeLists.txt
@@ -38,6 +38,7 @@ add_lld_library(lldMachO
   ${LLVM_TARGETS_TO_BUILD}
   BinaryFormat
   BitReader
+  BitWriter
   Core
   DebugInfoDWARF
   Demangle