diff --git a/app/Rules/UniqueCifExceptZero.php b/app/Rules/UniqueCifExceptZero.php
index e7236ce..c8173d1 100644
--- a/app/Rules/UniqueCifExceptZero.php
+++ b/app/Rules/UniqueCifExceptZero.php
@@ -17,7 +17,7 @@ class UniqueCifExceptZero implements ValidationRule
     {
         if (Debiture::where($attribute, $value)
                  ->where('id', '!=', $this->id)
-                 ->where($attribute, '!=', '000000')
+                 ->where($attribute, '!=', '0000000000')
                  ->exists()) {
             $fail('The :attribute field must be uniquse.'.$this->id);
         }