diff --git a/tests/uefi-test-tools/UefiTestToolsPkg/UefiTestToolsPkg.dsc b/tests/uefi-test-tools/UefiTestToolsPkg/UefiTestToolsPkg.dsc
index c8511cd732..0902fd3c73 100644
--- a/tests/uefi-test-tools/UefiTestToolsPkg/UefiTestToolsPkg.dsc
+++ b/tests/uefi-test-tools/UefiTestToolsPkg/UefiTestToolsPkg.dsc
@@ -19,7 +19,7 @@
   PLATFORM_VERSION        = 0.1
   PLATFORM_NAME           = UefiTestTools
   SKUID_IDENTIFIER        = DEFAULT
-  SUPPORTED_ARCHITECTURES = ARM|AARCH64|IA32|X64
+  SUPPORTED_ARCHITECTURES = ARM|AARCH64|IA32|X64|RISCV64
   BUILD_TARGETS           = DEBUG
 
 [BuildOptions.IA32]
@@ -60,6 +60,10 @@
 
 [LibraryClasses.IA32, LibraryClasses.X64]
   BaseMemoryLib|MdePkg/Library/BaseMemoryLibRepStr/BaseMemoryLibRepStr.inf
+  RegisterFilterLib|MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
+
+[LibraryClasses.RISCV64]
+  BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
 
 [PcdsFixedAtBuild]
   gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0x8040004F