diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c
index a61c9a7..dde083b 100644
--- a/lib/efi_loader/efi_runtime.c
+++ b/lib/efi_loader/efi_runtime.c
@@ -127,6 +127,10 @@
 				EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP |
 				EFI_RT_SUPPORTED_CONVERT_POINTER;
 
+	if (IS_ENABLED(CONFIG_EFI_RT_VOLATILE_STORE))
+		rt_table->runtime_services_supported |=
+			EFI_RT_SUPPORTED_SET_VARIABLE;
+
 	/*
 	 * This value must be synced with efi_runtime_detach_list
 	 * as well as efi_runtime_services.