diff --git a/UnixPkg/UnixPkg.dsc b/UnixPkg/UnixPkg.dsc
index b286de2e18..69d3d77a0e 100644
--- a/UnixPkg/UnixPkg.dsc
+++ b/UnixPkg/UnixPkg.dsc
@@ -52,6 +52,7 @@
   SerialPortLib|MdePkg/Library/BaseSerialPortLibNull/BaseSerialPortLibNull.inf
   BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
   BaseLib|MdePkg/Library/BaseLib/BaseLib.inf
+  SynchronizationLib|MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
   CpuLib|MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
   PerformanceLib|MdePkg/Library/BasePerformanceLibNull/BasePerformanceLibNull.inf
   PeCoffLib|MdePkg/Library/BasePeCoffLib/BasePeCoffLib.inf