diff --git a/lib/connector/sabre/file.php b/lib/connector/sabre/file.php
index 61bdcd5e0ae297f37eeadf067f6667a99b524cd5..433b11485523f786851d20a9c8e9292f94379af3 100644
--- a/lib/connector/sabre/file.php
+++ b/lib/connector/sabre/file.php
@@ -74,7 +74,14 @@ class OC_Connector_Sabre_File extends OC_Connector_Sabre_Node implements Sabre_D
 		}
 
 		// rename to correct path
-		\OC\Files\Filesystem::rename($partpath, $this->path);
+		$renameOkay = \OC\Files\Filesystem::rename($partpath, $this->path);
+		$fileExists = \OC\Files\Filesystem::file_exists($this->path);
+		if ($renameOkay === false || $fileExists === false) {
+			\OC_Log::write('webdav', '\OC\Files\Filesystem::rename() failed', \OC_Log::ERROR);
+			\OC\Files\Filesystem::unlink($partpath);
+			throw new Sabre_DAV_Exception();
+		}
+
 
 		//allow sync clients to send the mtime along in a header
 		$mtime = OC_Request::hasModificationTime();