diff --git a/documentation/ref-manual/introduction.xml b/documentation/ref-manual/introduction.xml
index 1c18e7f7a4..43108307b5 100644
--- a/documentation/ref-manual/introduction.xml
+++ b/documentation/ref-manual/introduction.xml
@@ -68,7 +68,7 @@
             <listitem><para><emphasis>
                 <link linkend='ref-variables-glos'>Variables Glossary</link>:</emphasis>
                 Presents most variables used by the OpenEmbedded build system, which
-                using BitBake.
+                uses BitBake.
                 Entries describe the function of the variable and how to apply them.
                 </para></listitem>
             <listitem><para><emphasis>