diff --git a/CHANGELOG.md b/CHANGELOG.md
index b306100..13b6f3c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ All notable changes to this project will be documented in this file, in reverse
 - `ServerRequestFactory::createServerRequestFromArray`, `ServerRequestFactory::createServerRequestFromArrays` and 
   `ServerRequestFactory::createServerRequestFromGlobals`. Please use the new `nyholm/psr7-server` instead. 
 - `UriFactory::createUriFromArray` since it was never used. 
+- `StreamFactory::copyToStream`
 
 ## 0.3.0
 
diff --git a/src/Factory/StreamFactory.php b/src/Factory/StreamFactory.php
index ec65d63..c70ec0d 100644
--- a/src/Factory/StreamFactory.php
+++ b/src/Factory/StreamFactory.php
@@ -24,43 +24,4 @@ public function createStream($body = null)
 
         return Stream::create(null === $body ? '' : $body);
     }
-
-    /**
-     * Copy the contents of a stream into another stream until the given number
-     * of bytes have been read.
-     *
-     * @author Michael Dowling and contributors to guzzlehttp/psr7
-     *
-     * @param StreamInterface $source Stream to read from
-     * @param StreamInterface $dest   Stream to write to
-     * @param int             $maxLen Maximum number of bytes to read. Pass -1
-     *                                to read the entire stream
-     *
-     * @throws \RuntimeException on error
-     */
-    public function copyToStream(StreamInterface $source, StreamInterface $dest, $maxLen = -1)
-    {
-        if ($maxLen === -1) {
-            while (!$source->eof()) {
-                if (!$dest->write($source->read(1048576))) {
-                    break;
-                }
-            }
-
-            return;
-        }
-
-        $bytes = 0;
-        while (!$source->eof()) {
-            $buf = $source->read($maxLen - $bytes);
-            if (!($len = strlen($buf))) {
-                break;
-            }
-            $bytes += $len;
-            $dest->write($buf);
-            if ($bytes === $maxLen) {
-                break;
-            }
-        }
-    }
 }
diff --git a/src/UploadedFile.php b/src/UploadedFile.php
index de375a3..5502431 100644
--- a/src/UploadedFile.php
+++ b/src/UploadedFile.php
@@ -5,7 +5,6 @@
 namespace Nyholm\Psr7;
 
 use InvalidArgumentException;
-use Nyholm\Psr7\Factory\StreamFactory;
 use Psr\Http\Message\StreamInterface;
 use Psr\Http\Message\UploadedFileInterface;
 use RuntimeException;
@@ -184,11 +183,7 @@ public function moveTo($targetPath): void
             if ($stream->isSeekable()) {
                 $stream->rewind();
             }
-            (new StreamFactory())->copyToStream(
-                $stream,
-                Stream::createFromResource(fopen($targetPath, 'w'))
-            );
-
+            $this->copyToStream($stream, Stream::createFromResource(fopen($targetPath, 'w')));
             $this->moved = true;
         }
 
@@ -216,4 +211,43 @@ public function getClientMediaType(): ?string
     {
         return $this->clientMediaType;
     }
+
+    /**
+     * Copy the contents of a stream into another stream until the given number
+     * of bytes have been read.
+     *
+     * @author Michael Dowling and contributors to guzzlehttp/psr7
+     *
+     * @param StreamInterface $source Stream to read from
+     * @param StreamInterface $dest   Stream to write to
+     * @param int             $maxLen Maximum number of bytes to read. Pass -1
+     *                                to read the entire stream
+     *
+     * @throws \RuntimeException on error
+     */
+    private function copyToStream(StreamInterface $source, StreamInterface $dest, $maxLen = -1)
+    {
+        if ($maxLen === -1) {
+            while (!$source->eof()) {
+                if (!$dest->write($source->read(1048576))) {
+                    break;
+                }
+            }
+
+            return;
+        }
+
+        $bytes = 0;
+        while (!$source->eof()) {
+            $buf = $source->read($maxLen - $bytes);
+            if (!($len = strlen($buf))) {
+                break;
+            }
+            $bytes += $len;
+            $dest->write($buf);
+            if ($bytes === $maxLen) {
+                break;
+            }
+        }
+    }
 }