diff --git a/src/entity/emr/emr_vital_signs.ts b/src/entity/emr/emr_vital_signs.ts
index 74015de..b13adfc 100644
--- a/src/entity/emr/emr_vital_signs.ts
+++ b/src/entity/emr/emr_vital_signs.ts
@@ -45,7 +45,7 @@ export class EmrVitalSigns {
     @Column({
         type: "enum",
         enum: consciousness,
-        nullable: false,
+        nullable: true,
     })
     consciousness: consciousness;