diff --git a/frontend/src/app/components/checkin/check-in-form-metric/MetricCheckInDirective.ts b/frontend/src/app/components/checkin/check-in-form-metric/MetricCheckInDirective.ts
index f25f36e680..f5a99f2a90 100644
--- a/frontend/src/app/components/checkin/check-in-form-metric/MetricCheckInDirective.ts
+++ b/frontend/src/app/components/checkin/check-in-form-metric/MetricCheckInDirective.ts
@@ -41,6 +41,7 @@ export class MetricCheckInDirective implements ControlValueAccessor {
     const value: string = param || '0';
     if (value.toString().at(0) == '-') {
       this.onChange(+('-' + value.toString().replace(this.CHAR_REGEX, '')));
+      return;
     }
     this.onChange(Number(value.toString().replace(this.CHAR_REGEX, '')));
   }