diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
index 6ab97739aa..377d269a8f 100644
--- a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
+++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
@@ -24,7 +24,7 @@
   FILE_GUID                      = b5a05743-9b71-489b-a0ed-a0eb3950d23b
   MODULE_TYPE                    = BASE
   VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = TimerLib|BASE DXE_CORE DXE_DRIVER DXE_SAL_DRIVER PEIM PEI_CORE SEC UEFI_APPLICATION UEFI_DRIVER DXE_RUNTIME_DRIVER
+  LIBRARY_CLASS                  = TimerLib|BASE DXE_CORE DXE_DRIVER DXE_SAL_DRIVER PEIM PEI_CORE SEC UEFI_APPLICATION UEFI_DRIVER
   EDK_RELEASE_VERSION            = 0x00020000
   EFI_SPECIFICATION_VERSION      = 0x00020000