diff --git a/doc/languages-frameworks/qt.section.md b/doc/languages-frameworks/qt.section.md
index b8b438e8858..fe2b853f18e 100644
--- a/doc/languages-frameworks/qt.section.md
+++ b/doc/languages-frameworks/qt.section.md
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   version = "1.0";
 
   buildInputs = [ qtbase ];
-  nativeBuildInputs = [ wrapQtAppsHook ]; <co xml:id'qt-default-nix-co-2' />
+  nativeBuildInputs = [ wrapQtAppsHook ]; <co xml:id='qt-default-nix-co-2' />
 }
 </programlisting>