doc examples
diff --git a/user_guide/libraries/input.html b/user_guide/libraries/input.html
index bb1a5f2..311dab8 100644
--- a/user_guide/libraries/input.html
+++ b/user_guide/libraries/input.html
@@ -178,7 +178,7 @@
<p>Takes an IP address as input and returns TRUE or FALSE (boolean) if it is valid or not. Note: The $this->input->ip_address() function above
validates the IP automatically.</p>
-<code>if (! valid_ip($ip))<br />
+<code>if (! $this->input->valid_ip($ip))<br />
{<br />
echo 'Not Valid';<br />
}<br />