diff --git a/doc/global/config.qdocconf b/doc/global/config.qdocconf
index 59f95cf844f..3e6658883c9 100644
--- a/doc/global/config.qdocconf
+++ b/doc/global/config.qdocconf
@@ -29,6 +29,9 @@ url = https://doc.qt.io/qt
 
 defines += qt6
 
+# Require Qt modules to define qhp.projects
+qhp = true
+
 # Uncomment the following two lines to generate documentation marked as \internal
 # alias.internal = disable
 # macro.internal.HTML = "<span style="color:red">[internal]</span>"