diff --git a/lib/diff/diff.class.php b/lib/diff/diff.class.php
index 019c3b28dd..9fa2e35c6f 100644
--- a/lib/diff/diff.class.php
+++ b/lib/diff/diff.class.php
@@ -17,8 +17,8 @@ class diff extends baseDelegate
 {
     protected static $className = 'GorHill\FineDiff\FineDiff';
 
-    public function __construct($from_text = '', $to_text = '', $granularityStack = null)
+    public function __construct($from = '', $to = '', $granularityStack = null)
     {
-        $this->instance = new static::$className($from_text, $to_text, $granularityStack);
+        $this->instance = new static::$className($from, $to, $granularityStack);
     }
 }
diff --git a/lib/pclzip/pclzip.class.php b/lib/pclzip/pclzip.class.php
index 2e940f451d..ff499b7a38 100644
--- a/lib/pclzip/pclzip.class.php
+++ b/lib/pclzip/pclzip.class.php
@@ -17,8 +17,8 @@ class pclzip extends baseDelegate
 {
     protected static $className = 'Vendor\PclZip\PclZip';
 
-    public function __construct($p_zipname)
+    public function __construct($zipname)
     {
-        $this->instance = new static::$className($p_zipname);
+        $this->instance = new static::$className($zipname);
     }
 }