diff --git a/Library/OcGuardLib/OcGuardLib.inf b/Library/OcGuardLib/OcGuardLib.inf
index d2bbc321..886f19db 100644
--- a/Library/OcGuardLib/OcGuardLib.inf
+++ b/Library/OcGuardLib/OcGuardLib.inf
@@ -43,6 +43,7 @@
 
 [LibraryClasses]
   BaseLib
+  UefiLib
 
 [BuildOptions]
   XCODE:DEBUG_*_*_CC_FLAGS   = -fno-stack-protector