diff --git a/src/server/schema-validator/scenario-schema.ts b/src/server/schema-validator/scenario-schema.ts
index 9070d732..29ce25f9 100644
--- a/src/server/schema-validator/scenario-schema.ts
+++ b/src/server/schema-validator/scenario-schema.ts
@@ -75,6 +75,7 @@ export const updateScenarioSchema = {
       standardDeviation: Joi.boolean().required(),
       min: Joi.boolean().required(),
       max: Joi.boolean().required(),
+      p50: Joi.boolean().required(),
       p90: Joi.boolean().required(),
       p95: Joi.boolean().required(),
       p99: Joi.boolean().required(),