diff --git a/src/app/content/hemat-app/master/master-building/add-edit-master-building/add-edit-master-building.component.ts b/src/app/content/hemat-app/master/master-building/add-edit-master-building/add-edit-master-building.component.ts
index f5fd74b..44fc668 100644
--- a/src/app/content/hemat-app/master/master-building/add-edit-master-building/add-edit-master-building.component.ts
+++ b/src/app/content/hemat-app/master/master-building/add-edit-master-building/add-edit-master-building.component.ts
@@ -48,7 +48,7 @@ export class AddEditMasterBuildingComponent {
       owner: ["", Validators.required],
       address: ["", Validators.required],
       phone: ["", [Validators.required, Validators.pattern(/^[0-9]{10,15}$/)]],
-      kwh: ["", [Validators.required, Validators.maxLength(15), Validators.pattern(/^[0-9]{1,15}$/)]],
+      kwh: ["", [Validators.required, Validators.maxLength(15), Validators.pattern(/^[0-9]{1,7}$/)]],
     });
   }
 
@@ -61,7 +61,7 @@ export class AddEditMasterBuildingComponent {
       address: [this.dataRow.address, Validators.required],
       phone: [this.dataRow.phone, [Validators.required, Validators.pattern(/^[0-9]{10,15}$/)]],
       owner: [this.dataRow.owner,Validators.required],
-      kwh: [this.dataRow.kwh, [Validators.required, Validators.maxLength(15), Validators.pattern(/^[0-9]{1,15}$/)]],
+      kwh: [this.dataRow.kwh, [Validators.required, Validators.maxLength(15), Validators.pattern(/^[0-9]{1,7}$/)]],
     });
   }