diff --git a/documentation/ref-manual/technical-details.xml b/documentation/ref-manual/technical-details.xml
index a3452651c7..c7a49da946 100644
--- a/documentation/ref-manual/technical-details.xml
+++ b/documentation/ref-manual/technical-details.xml
@@ -173,7 +173,7 @@
 
     <para>
         The generalized Yocto Project Devevelopment Environment consists of
-        severl functional areas:
+        several functional areas:
         <itemizedlist>
             <listitem><para><emphasis>User Configuration:</emphasis>
                 Metadata you can use to control the build process.