diff --git a/OvmfPkg/Microvm/MicrovmX64.dsc b/OvmfPkg/Microvm/MicrovmX64.dsc
index 5f4d922679..e5a2844472 100644
--- a/OvmfPkg/Microvm/MicrovmX64.dsc
+++ b/OvmfPkg/Microvm/MicrovmX64.dsc
@@ -600,6 +600,9 @@
   gEfiNetworkPkgTokenSpaceGuid.PcdIPv4PXESupport|0x01
   gEfiNetworkPkgTokenSpaceGuid.PcdIPv6PXESupport|0x01
 
+  # Set ConfidentialComputing defaults
+  gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr|0
+
 ################################################################################
 #
 # Components Section - list of all EDK II Modules needed by this Platform.