diff --git a/src/Interfaces/ReaderInterface.php b/src/Interfaces/ReaderInterface.php
new file mode 100644
index 0000000..cfbd53b
--- /dev/null
+++ b/src/Interfaces/ReaderInterface.php
@@ -0,0 +1,9 @@
+<?php
+
+
+namespace JeroenED\Libpairtwo\Interfaces;
+
+interface ReaderInterface
+{
+    public function read($filename);
+}