diff --git a/src/decisions/decisions.controller.ts b/src/decisions/decisions.controller.ts
index 112c4f0..ea23cf1 100644
--- a/src/decisions/decisions.controller.ts
+++ b/src/decisions/decisions.controller.ts
@@ -7,7 +7,7 @@ import { db } from '../db/client';
 import { decisions } from '../db/schema';
 
 class CreateDecisionDto {
-  @IsString() context: string;
+  @IsString() context!: string;
   @IsOptional() @IsArray() options?: string[];
   @IsOptional() @IsArray() assumptions?: string[];
   @IsOptional() @IsString() workspaceId?: string;