diff --git a/src/DataCollector/CacheDataCollector.php b/src/DataCollector/CacheDataCollector.php
index 54b1148..3302c4c 100644
--- a/src/DataCollector/CacheDataCollector.php
+++ b/src/DataCollector/CacheDataCollector.php
@@ -25,15 +25,15 @@
 class CacheDataCollector extends DataCollector
 {
     /**
-     * @type CacheProxy[]
+     * @type CacheProxyInterface[]
      */
     private $instances = [];
 
     /**
-     * @param string     $name
-     * @param CacheProxy $instance
+     * @param string              $name
+     * @param CacheProxyInterface $instance
      */
-    public function addInstance($name, CacheProxy $instance)
+    public function addInstance($name, CacheProxyInterface $instance)
     {
         $this->instances[$name] = $instance;
     }
diff --git a/src/DataCollector/CacheProxy.php b/src/DataCollector/CacheProxyInterface.php
similarity index 94%
rename from src/DataCollector/CacheProxy.php
rename to src/DataCollector/CacheProxyInterface.php
index 759f5e8..c592ec3 100644
--- a/src/DataCollector/CacheProxy.php
+++ b/src/DataCollector/CacheProxyInterface.php
@@ -16,7 +16,7 @@
  *
  * @author Tobias Nyholm <tobias.nyholm@gmail.com>
  */
-interface CacheProxy
+interface CacheProxyInterface
 {
     public function __getCalls();
 
diff --git a/src/DataCollector/DecoratingFactory.php b/src/DataCollector/DecoratingFactory.php
index dfccc96..781f39c 100644
--- a/src/DataCollector/DecoratingFactory.php
+++ b/src/DataCollector/DecoratingFactory.php
@@ -37,13 +37,13 @@ public function __construct(ProxyFactory $proxyFactory)
     /**
      * @param CacheItemPoolInterface $originalObject original class
      *
-     * @return CacheProxy|CacheItemPoolInterface
+     * @return CacheProxyInterface|CacheItemPoolInterface
      */
     public function create($originalObject)
     {
         $proxyClass = $this->proxyFactory->createProxy(get_class($originalObject));
-        $rc         = new \ReflectionClass($proxyClass);
-        $pool       = $rc->newInstanceWithoutConstructor();
+        $reflection = new \ReflectionClass($proxyClass);
+        $pool       = $reflection->newInstanceWithoutConstructor();
 
         // Copy properties from original pool to new
         foreach (NSA::getProperties($originalObject) as $property) {
diff --git a/src/Resources/proxy/template.php b/src/Resources/proxy/template.php
index 91b69fd..e350c8c 100644
--- a/src/Resources/proxy/template.php
+++ b/src/Resources/proxy/template.php
@@ -9,11 +9,11 @@
  * with this source code in the file LICENSE.
  */
 
-use Cache\CacheBundle\DataCollector\CacheProxy;
+use Cache\CacheBundle\DataCollector\CacheProxyInterface;
 use Cache\CacheBundle\DataCollector\TraceableAdapterEvent;
 use Psr\Cache\CacheItemInterface;
 
-class __TPL_CLASS__ extends __TPL_EXTENDS__ implements CacheProxy
+class __TPL_CLASS__ extends __TPL_EXTENDS__ implements CacheProxyInterface
 {
     private $__name;
     private $__calls = [];
@@ -168,10 +168,10 @@ public function __setName($name)
 
     private function start($name, $argument = null)
     {
-        $this->__calls[]   = $event   = new TraceableAdapterEvent();
-        $event->name       = $name;
-        $event->argument   = $argument;
-        $event->start      = microtime(true);
+        $this->__calls[] = $event = new TraceableAdapterEvent();
+        $event->name     = $name;
+        $event->argument = $argument;
+        $event->start    = microtime(true);
 
         return $event;
     }