diff --git a/data/x00.php b/data/x00.php
index c4bf3cb..c7092e3 100644
--- a/data/x00.php
+++ b/data/x00.php
@@ -30,3 +30,13 @@ $variant['de'] = array(
   0xFC => 'ue',
   0xDF => 'ss',
 );
+
+// Overrides for Spanish input.
+$variant['es'] = array(
+  0xE1 => 'a',
+  0xE9 => 'e',
+  0xED => 'i',
+  0xF3 => 'o',
+  0xFA => 'u',
+  0xF1 => 'n',
+);