diff --git a/src/OptimizerChain.php b/src/OptimizerChain.php
index 3c4e310..c95b09f 100644
--- a/src/OptimizerChain.php
+++ b/src/OptimizerChain.php
@@ -66,7 +66,7 @@ public function optimize(string $pathToImage, ?string $pathToOutput = null)
     {
         if ($pathToOutput) {
             $check = copy($pathToImage, $pathToOutput);
-            if($check == false) {
+            if ($check == false) {
                 throw new InvalidArgumentException("Cannot copy file");
             }
             $pathToImage = $pathToOutput;