diff --git a/EmulatorPkg/EmulatorPkg.dsc b/EmulatorPkg/EmulatorPkg.dsc
index c6e25c745e..a27cb1beb0 100644
--- a/EmulatorPkg/EmulatorPkg.dsc
+++ b/EmulatorPkg/EmulatorPkg.dsc
@@ -113,6 +113,7 @@
   FileHandleLib|MdePkg/Library/UefiFileHandleLib/UefiFileHandleLib.inf
 
 !if $(SECURE_BOOT_ENABLE) == TRUE
+  RngLib|MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
   IntrinsicLib|CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf
   OpensslLib|CryptoPkg/Library/OpensslLib/OpensslLibCrypto.inf
   PlatformSecureLib|SecurityPkg/Library/PlatformSecureLibNull/PlatformSecureLibNull.inf