typo fix: thih to this
diff --git a/user_guide/general/creating_libraries.html b/user_guide/general/creating_libraries.html
index 11a62c9..86cd152 100644
--- a/user_guide/general/creating_libraries.html
+++ b/user_guide/general/creating_libraries.html
@@ -220,7 +220,7 @@
 

 <code>$this->load->library('<kbd>email</kbd>');</code>

 

-<p class="important"><strong>Note:</strong> At thit time the Database classes can not be replaced with your own versions.</p>

+<p class="important"><strong>Note:</strong> At this time the Database classes can not be replaced with your own versions.</p>

 

 

 <h2>Extending Native Libraries</h2>