diff --git a/doc/utf8cpp.html b/doc/utf8cpp.html
index c0a89a2..06849b1 100644
--- a/doc/utf8cpp.html
+++ b/doc/utf8cpp.html
@@ -1730,7 +1730,7 @@ assert (*un_it == <span class="literal">0x10346</span>);
         for Windows (both 32 and 64 bit), and most 32 bit and 64 bit Unix derivatives.
       </li>
       <li>
-        Lightweight: follow the "pay only for what you use" guidline.
+        Lightweight: follow the "pay only for what you use" guideline.
       </li>
       <li>
         Unintrusive: avoid forcing any particular design or even programming style on the