diff --git a/src/client/hooks/useValidation.ts b/src/client/hooks/useValidation.ts
index 86351fa..4291bc4 100644
--- a/src/client/hooks/useValidation.ts
+++ b/src/client/hooks/useValidation.ts
@@ -30,15 +30,10 @@ export const useValidation = ({
 
   // inner validation && set validation status to store
   useEffect(() => {
-    if (!validator) {
-      return;
-    }
     if (!value) {
-      setValidation(undefined);
       calculationStore.setValidation(elementName, undefined);
     } else {
-      const validationResult = validator(value);
-      setValidation(validationResult);
+      let validationResult = validator ? validator(value) : true;
       calculationStore.setValidation(elementName, validationResult);
     }
   }, [value, validator, elementName]);