diff --git a/app/Admin/Forms/DealerWalletChange.php b/app/Admin/Forms/DealerWalletChange.php
index 5d3080ee..badd8da6 100644
--- a/app/Admin/Forms/DealerWalletChange.php
+++ b/app/Admin/Forms/DealerWalletChange.php
@@ -35,7 +35,7 @@ class DealerWalletChange extends Form implements LazyRenderable
      */
     public function handle(array $input)
     {
-        if (bccomp($input['change_balance'], '0', 2) === -1) {
+        if (bccomp($input['change_balance'], '0', 2) <= 0) {
             return $this->response()->error('金额必须大于0');
         }