diff --git a/src/datapoints-graph/alarm-selector/alarm-attributes-form/alarm-attributes-form.component.ts b/src/datapoints-graph/alarm-selector/alarm-attributes-form/alarm-attributes-form.component.ts
index 153209a4..65b654ca 100644
--- a/src/datapoints-graph/alarm-selector/alarm-attributes-form/alarm-attributes-form.component.ts
+++ b/src/datapoints-graph/alarm-selector/alarm-attributes-form/alarm-attributes-form.component.ts
@@ -37,6 +37,7 @@ export class AlarmAttributesFormComponent
     this.formGroup = this.formBuilder.group({
       label: '',
       filters: this.formBuilder.group({ type: ['', [Validators.required]] }),
+      timelineType: '',
     });
   }