diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index b4834e8b4f88..5dfbbc293390 100644
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -166,6 +166,9 @@
 [PcdsFixedAtBuild.X64]
   gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize|16|UINT8|0x00000011
 
+[PcdsFixedAtBuild.LOONGARCH64]
+  gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize|16|UINT8|0x00000011
+
 [PcdsFixedAtBuild.common, PcdsDynamic.common]
   #
   # Value to add to a host address to obtain a device address, using