diff --git a/src/Exceptions/InvalidFormat.php b/src/Exceptions/InvalidFormat.php
index 0be8497..18e3519 100644
--- a/src/Exceptions/InvalidFormat.php
+++ b/src/Exceptions/InvalidFormat.php
@@ -9,7 +9,7 @@ class InvalidFormat extends Exception
     /**
      * Invalid mime type exception.
      *
-     * @param $mimeType
+     * @param  $mimeType
      * @return static
      */
     public static function invalidMimeType($mimeType)
diff --git a/src/Exceptions/UnableToOpen.php b/src/Exceptions/UnableToOpen.php
index fa22f41..7c467c8 100644
--- a/src/Exceptions/UnableToOpen.php
+++ b/src/Exceptions/UnableToOpen.php
@@ -9,7 +9,7 @@ class UnableToOpen extends Exception
     /**
      * No such file exception.
      *
-     * @param $file
+     * @param  $file
      * @return static
      */
     public static function noSuchFile($file)
diff --git a/src/Exceptions/ZbarError.php b/src/Exceptions/ZbarError.php
index f348af4..1be860d 100644
--- a/src/Exceptions/ZbarError.php
+++ b/src/Exceptions/ZbarError.php
@@ -9,7 +9,7 @@ class ZbarError extends Exception
     /**
      * Zbar exit status code messages.
      *
-     * @param $code
+     * @param  $code
      * @return static
      */
     public static function exitStatus($code)
diff --git a/src/Zbar.php b/src/Zbar.php
index 8293dba..1de115e 100644
--- a/src/Zbar.php
+++ b/src/Zbar.php
@@ -35,7 +35,7 @@ class Zbar
     /**
      * Zbar constructor.
      *
-     * @param $image
+     * @param  $image
      *
      * @throws InvalidFormat
      * @throws UnableToOpen
@@ -122,7 +122,7 @@ public function decode()
     /**
      * Return symbol object.
      *
-     * @param $output
+     * @param  $output
      * @return object
      */
     private function parse($output)