diff --git a/doc/Cabal.xml b/doc/Cabal.xml
index d16119417ad441c83466ff7dab1cdeb81f02aa4b..13da6ba0b82aa195a14f5d4fd6824ba322c7e76b 100644
--- a/doc/Cabal.xml
+++ b/doc/Cabal.xml
@@ -1583,7 +1583,7 @@ else
         </itemizedlist>
 	      </para>
 	      <para>
-	        You can specify on kind or the other or both. As an example here are
+	        You can specify one kind or the other or both. As an example here are
 	        the repositories for the Cabal library. Note that the
 	        <literal>this</literal> kind of repo specifies a tag.
   	      <programlisting>