diff --git a/src/Currency.php b/src/Currency.php
index 5d3361f..382ae38 100644
--- a/src/Currency.php
+++ b/src/Currency.php
@@ -240,7 +240,7 @@ public function __construct($currency)
         $currency = strtoupper(trim($currency));
         $currencies = static::getCurrencies();
 
-        if (! array_key_exists($currency, $currencies)) {
+        if (!array_key_exists($currency, $currencies)) {
             throw new OutOfBoundsException('Invalid currency "' . $currency . '"');
         }