docs: Mention pandoc as build dependency

diff --git a/docs/reference/gtk/building.md b/docs/reference/gtk/building.md
index 6aa2891b2408fc82ad3765c3da05e700bd5c17f5..1f676faae85bbf483f29d4eae6f0016be450cd50 100644 (file)
--- a/docs/reference/gtk/building.md
+++ b/docs/reference/gtk/building.md
@@ -231,8 +231,8 @@ whether Xinerama should be used.
 The *gtk-doc* package is used to generate the reference documentation
 included with GTK. By default support for *gtk-doc* is disabled
 because it requires various extra dependencies to be installed.
-If you have *gtk-doc* installed and are modifying GTK, you may want
-to enable *gtk-doc* support by passing in `-Dgtk_doc=true`.
+If you have *gtk-doc* and *pandoc* installed and are modifying GTK,
+you may want to enable *gtk-doc* support by passing in `-Dgtk_doc=true`.
 
 Additionally, some tools provided by GTK have their own
 manual pages generated using a similar set of dependencies;