diff --git a/mirai-console/backend/mirai-console/src/command/descriptor/CommandParameter.kt b/mirai-console/backend/mirai-console/src/command/descriptor/CommandParameter.kt
index 4ff11c12f..1fa102d9d 100644
--- a/mirai-console/backend/mirai-console/src/command/descriptor/CommandParameter.kt
+++ b/mirai-console/backend/mirai-console/src/command/descriptor/CommandParameter.kt
@@ -31,7 +31,7 @@ import kotlin.reflect.typeOf
  * Inherited instances must be [CommandValueParameter] or [CommandReceiverParameter]
  */
 @ExperimentalCommandDescriptors
-public interface CommandParameter<T : Any?> {
+public sealed interface CommandParameter<T : Any?> {
     public val name: String?
 
     public val isOptional: Boolean