diff --git a/UefiPayloadPkg/UefiPayloadPkg.dsc b/UefiPayloadPkg/UefiPayloadPkg.dsc
index 4d9bbc80c8..cfcf38578d 100644
--- a/UefiPayloadPkg/UefiPayloadPkg.dsc
+++ b/UefiPayloadPkg/UefiPayloadPkg.dsc
@@ -410,6 +410,7 @@
 
   gUefiPayloadPkgTokenSpaceGuid.PcdDispatchModuleAbove4GMemory|$(ABOVE_4G_MEMORY)
   gUefiPayloadPkgTokenSpaceGuid.PcdBootManagerEscape|$(BOOT_MANAGER_ESCAPE)
+  gEfiMdePkgTokenSpaceGuid.PcdMaximumUnicodeStringLength|1800000
 
 [PcdsPatchableInModule.X64]
   gPcAtChipsetPkgTokenSpaceGuid.PcdRtcIndexRegister|$(RTC_INDEX_REGISTER)