diff --git a/src/lib/form/base-form.component.ts b/src/lib/form/base-form.component.ts
index 9455bef..02e4c13 100644
--- a/src/lib/form/base-form.component.ts
+++ b/src/lib/form/base-form.component.ts
@@ -19,5 +19,5 @@ export abstract class BaseFormComponent extends AutoUnsubscribe {
         return !this.valid || !this.changed;
     }
 
-    abstract save(): unknown;
+    abstract save(): Promise<void>;
 }