diff --git a/php-binance-api.php b/php-binance-api.php
index 2b2d3309..724d6821 100755
--- a/php-binance-api.php
+++ b/php-binance-api.php
@@ -410,7 +410,7 @@ public function numberOfDecimals($val = 0.00000001)
     public function marketQuoteSell(string $symbol, $quantity, array $flags = [])
     {
         $flags['isQuoteOrder'] = true;
-        $c = $this->numberOfDecimals($this->exchangeInfo()['symbols'][$symbol]['filters'][2]['minQty']);
+        $c = $this->numberOfDecimals($this->exchangeInfo()['symbols'][$symbol]['filters'][1]['minQty']);
         $quantity = $this->floorDecimal($quantity, $c);
 
         return $this->order("SELL", $symbol, $quantity, 0, "MARKET", $flags);
@@ -446,7 +446,7 @@ public function marketQuoteSellTest(string $symbol, $quantity, array $flags = []
      */
     public function marketSell(string $symbol, $quantity, array $flags = [])
     {
-        $c = $this->numberOfDecimals($this->exchangeInfo()['symbols'][$symbol]['filters'][2]['minQty']);
+        $c = $this->numberOfDecimals($this->exchangeInfo()['symbols'][$symbol]['filters'][1]['minQty']);
         $quantity = $this->floorDecimal($quantity, $c);
 
         return $this->order("SELL", $symbol, $quantity, 0, "MARKET", $flags);