diff --git a/functions/errorfunc.xml b/functions/errorfunc.xml
index 7e12edb948..270e8c0733 100644
--- a/functions/errorfunc.xml
+++ b/functions/errorfunc.xml
@@ -100,7 +100,7 @@
     <warning>
      <para>
       Remote debugging via TCP/IP is a PHP 3 feature that is <emphasis>not</emphasis>
-      availiable in PHP 4.
+      available in PHP 4.
      </para>
     </warning>
     <para>