diff --git a/src/Interface/Model/Pool.php b/src/Interface/Model/Pool.php
index 39d46bc0..6b88dca3 100644
--- a/src/Interface/Model/Pool.php
+++ b/src/Interface/Model/Pool.php
@@ -20,7 +20,7 @@ interface Pool
 
     public function set(
         string $key,
-        string $value,
+        string $value = '',
         string $flags = 'c',
         int $offset = 0,
         int $mode = 0644,
diff --git a/src/Model/Pool.php b/src/Model/Pool.php
index b330bbb8..eb6aad0b 100644
--- a/src/Model/Pool.php
+++ b/src/Model/Pool.php
@@ -40,7 +40,7 @@ class Pool implements \Yggverse\Yoda\Interface\Model\Pool
 
     public function set(
         string $key,
-        string $value,
+        string $value = '',
         string $flags = 'c',
         int $offset = 0,
         int $mode = 0644,