diff --git a/root.pro b/root.pro
index b02e0e8..a7ee908 100644
--- a/root.pro
+++ b/root.pro
@@ -2,7 +2,7 @@ TEMPLATE = subdirs
 
 SUBDIRS = src tests type-to-cxx
 
-prf.path =  $$[QT_HOST_DATA]/mkspecs/features
+prf.path = $$[QT_INSTALL_ARCHDATA]/mkspecs/features
 
 equals(QT_MAJOR_VERSION, 5): prf.files = iodata-qt5.prf
 equals(QT_MAJOR_VERSION, 6): prf.files = iodata-qt6.prf