diff --git a/php-binance-api.php b/php-binance-api.php
index 7d866a71..eda89bf0 100644
--- a/php-binance-api.php
+++ b/php-binance-api.php
@@ -283,7 +283,7 @@ private function tickerStreamHandler($json) {
 			"bestBid" => $json->b,
 			"bestBidQty" => $json->B,
 			"bestAsk" => $json->a,
-			"bestaskQty" => $json->A,
+			"bestAskQty" => $json->A,
 			"open" => $json->o,
 			"high" => $json->h,
 			"low" => $json->l,