diff --git a/src/Laravalid/Converter/Base/Converter.php b/src/Laravalid/Converter/Base/Converter.php
index 814a92f..05fdc89 100644
--- a/src/Laravalid/Converter/Base/Converter.php
+++ b/src/Laravalid/Converter/Base/Converter.php
@@ -129,9 +129,12 @@ public function getValidationRules()
      */
     public function getValidationRule($inputName)
     {
-        return is_array($this->getValidationRules()[$inputName])?
-            $this->getValidationRules()[$inputName] :
-            explode('|', $this->getValidationRules()[$inputName]);
+        $rules = $this->getValidationRules();
+        if (isset($rules[$inputName])) {
+            return is_array($rules[$inputName])? $rules[$inputName] : explode('|', $rules[$inputName]);
+        } else {
+            return [];
+        }
     }
 
     /**
@@ -222,4 +225,4 @@ protected function getDefaultErrorMessage($laravelRule, $attribute)
 
         return ['data-msg-'.$laravelRule => $message];
     }
-}
\ No newline at end of file
+}