diff --git a/doc/manual/configuration.xml b/doc/manual/configuration.xml
index 0a3cb5c8fce..965ba73105a 100644
--- a/doc/manual/configuration.xml
+++ b/doc/manual/configuration.xml
@@ -280,7 +280,7 @@ $ nix-env -u '*'
 </screen>
 </para>
 
-<para>A package can be unstalled using the <option>-e</option>
+<para>A package can be uninstalled using the <option>-e</option>
 flag:
 <screen>
 $ nix-env -e thunderbird