diff --git a/user_guide/libraries/form_validation.html b/user_guide/libraries/form_validation.html
index 196c83b..6311191 100644
--- a/user_guide/libraries/form_validation.html
+++ b/user_guide/libraries/form_validation.html
@@ -1165,7 +1165,7 @@
 
 <code>&lt;input type="text" name="quantity" value="<dfn>&lt;?php echo set_value('quantity', '0'); ?></dfn>" size="50" /></code>
 
-<p>The above form will show "0" when loaded for the firs time.</p>
+<p>The above form will show "0" when loaded for the first time.</p>
 
 <h2>set_select()</h2>