diff --git a/webapp/controller/MarketController.class.php b/webapp/controller/MarketController.class.php
index 33e66b4d..2cc83838 100644
--- a/webapp/controller/MarketController.class.php
+++ b/webapp/controller/MarketController.class.php
@@ -169,9 +169,12 @@ class MarketController extends BaseAuthedController {
                             'custom_func' => function () use ($queryData) {
                                 $searchFilter = $queryData['amount_filters'];
                                 $arrSearchFilter = explode('|', $searchFilters);
-                                return ' AND (amount>=\"'
-                                    . $arrSearchFilter[0] . '\" AND ' .
-                                    'amount<=\"' . $arrSearchFilter[1] . '\")';
+                                return ' AND (length(amount) >= length(\"'
+                                    . $arrSearchFilter[0] . '\") AND ' .
+                                    'length(amount) <= length(\"' . $arrSearchFilter[1] . '\"))'
+                                    . ' AND (amount >= \"'
+                                    . $arrSearchFilter[0] . '\" AND '
+                                    . 'amount <= \"' . $arrSearchFilter[1] . '\")';
                             }
                         )
                     )