diff --git a/MdePkg/Library/SmmPciLibPciRootBridgeIo/SmmPciLibPciRootBridgeIo.inf b/MdePkg/Library/SmmPciLibPciRootBridgeIo/SmmPciLibPciRootBridgeIo.inf
index 71524c730a..7d8a99b3c9 100644
--- a/MdePkg/Library/SmmPciLibPciRootBridgeIo/SmmPciLibPciRootBridgeIo.inf
+++ b/MdePkg/Library/SmmPciLibPciRootBridgeIo/SmmPciLibPciRootBridgeIo.inf
@@ -48,3 +48,6 @@
 
 [Protocols]
   gEfiSmmPciRootBridgeIoProtocolGuid               ## CONSUMES
+  
+[Depex]
+  gEfiSmmPciRootBridgeIoProtocolGuid