diff --git a/doc/manual/command-ref/conf-file.xml b/doc/manual/command-ref/conf-file.xml
index b1b604100..36b70f0c4 100644
--- a/doc/manual/command-ref/conf-file.xml
+++ b/doc/manual/command-ref/conf-file.xml
@@ -646,8 +646,8 @@ password <replaceable>my-password</replaceable>
 
   <varlistentry xml:id="conf-allow-import-from-derivation"><term><literal>allow-import-from-derivation</literal></term>
 
-    <listitem><para>By default, nix allows you to <function>import</function> from a derivation,
-    allowing building at evaluation time. With this option set to false, nix will throw an error
+    <listitem><para>By default, Nix allows you to <function>import</function> from a derivation,
+    allowing building at evaluation time. With this option set to false, Nix will throw an error
     when evaluating an expression that uses this feature, allowing users to ensure their evaluation
     will not require any builds to take place.</para></listitem>