diff --git a/src/Validators/FieldHasValueValidator.php b/src/Validators/FieldHasValueValidator.php
index 85cc2bf..d22d158 100644
--- a/src/Validators/FieldHasValueValidator.php
+++ b/src/Validators/FieldHasValueValidator.php
@@ -48,7 +48,7 @@ protected function fieldHasValue(array $data, FormField $formField): bool
         }
 
         // assume a string or integer
-        return (strlen($value)) ? true : false;
+        return (strlen($value ?? '')) ? true : false;
     }
 
     /**