diff --git a/OvmfPkg/Microvm/MicrovmX64.dsc b/OvmfPkg/Microvm/MicrovmX64.dsc
index 33d68a5493..e60d3a2071 100644
--- a/OvmfPkg/Microvm/MicrovmX64.dsc
+++ b/OvmfPkg/Microvm/MicrovmX64.dsc
@@ -91,6 +91,15 @@
   INTEL:*_*_*_CC_FLAGS = /D DISABLE_NEW_DEPRECATED_INTERFACES
   GCC:*_*_*_CC_FLAGS = -D DISABLE_NEW_DEPRECATED_INTERFACES
 
+  #
+  # SECURE_BOOT_FEATURE_ENABLED
+  #
+!if $(SECURE_BOOT_ENABLE) == TRUE
+  MSFT:*_*_*_CC_FLAGS = /D SECURE_BOOT_FEATURE_ENABLED
+  INTEL:*_*_*_CC_FLAGS = /D SECURE_BOOT_FEATURE_ENABLED
+  GCC:*_*_*_CC_FLAGS = -D SECURE_BOOT_FEATURE_ENABLED
+!endif
+
 !include NetworkPkg/NetworkBuildOptions.dsc.inc
 
 [BuildOptions.common.EDKII.DXE_RUNTIME_DRIVER]