diff --git a/public/app/features/alerting/unified/components/amroutes/AmRoutesExpandedForm.tsx b/public/app/features/alerting/unified/components/amroutes/AmRoutesExpandedForm.tsx
index 853b136c7fc..d2f28c173a9 100644
--- a/public/app/features/alerting/unified/components/amroutes/AmRoutesExpandedForm.tsx
+++ b/public/app/features/alerting/unified/components/amroutes/AmRoutesExpandedForm.tsx
@@ -73,7 +73,7 @@ export const AmRoutesExpandedForm: FC<AmRoutesExpandedFormProps> = ({ onCancel,
                       {fields.map((field, index) => {
                         const localPath = `object_matchers[${index}]`;
                         return (
-                          <HorizontalGroup key={field.id} align="flex-start">
+                          <HorizontalGroup key={field.id} align="flex-start" height="auto">
                             <Field
                               label="Label"
                               invalid={!!errors.object_matchers?.[index]?.name}