diff --git a/OvmfPkg/VarStore.fdf.inc b/OvmfPkg/VarStore.fdf.inc
index 8f91e3959104..ce901c0109b1 100644
--- a/OvmfPkg/VarStore.fdf.inc
+++ b/OvmfPkg/VarStore.fdf.inc
@@ -38,19 +38,12 @@ DATA = {
   # Blockmap[1]: End
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   ## This is the VARIABLE_STORE_HEADER
-!if $(SECURE_BOOT_ENABLE) == TRUE
+  # It is compatible with SECURE_BOOT_ENABLE == FALSE as well.
   # Signature: gEfiAuthenticatedVariableGuid =
   #   { 0xaaf32c78, 0x947b, 0x439a,
   #     { 0xa1, 0x80, 0x2e, 0x14, 0x4e, 0xc3, 0x77, 0x92 }}
   0x78, 0x2c, 0xf3, 0xaa, 0x7b, 0x94, 0x9a, 0x43,
   0xa1, 0x80, 0x2e, 0x14, 0x4e, 0xc3, 0x77, 0x92,
-!else
-  # Signature: gEfiVariableGuid =
-  #   { 0xddcf3616, 0x3275, 0x4164,
-  #     { 0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d }}
-  0x16, 0x36, 0xcf, 0xdd, 0x75, 0x32, 0x64, 0x41,
-  0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d,
-!endif
   # Size: 0xe000 (gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize) -
   #         0x48 (size of EFI_FIRMWARE_VOLUME_HEADER) = 0xdfb8
   # This can speed up the Variable Dispatch a bit.