diff --git a/bootstrap/app.php b/bootstrap/app.php
index 4dbb9ae..c669c62 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -27,6 +27,12 @@ $app->withFacades();
 
 $app->configure('app');
 $app->configure('datasets');
+$app->configure('namespaces');
+
+// Register namespaces
+foreach (config('namespaces') as $prefix => $uri) {
+    EasyRdf_Namespace::set($prefix, $uri);
+}
 
 /*
 |--------------------------------------------------------------------------
diff --git a/config/namespaces.php b/config/namespaces.php
new file mode 100644
index 0000000..2d4638a
--- /dev/null
+++ b/config/namespaces.php
@@ -0,0 +1,5 @@
+<?php
+return [
+    'ma' => 'https://metadata.moe/ns/madb/ma#',
+    'madbdata' => 'https://metadata.moe/ns/madb/madbdata#',
+];