diff --git a/src/corelib/doc/doc.pri b/src/corelib/doc/doc.pri
index 8f69c5df45..ed970d7592 100644
--- a/src/corelib/doc/doc.pri
+++ b/src/corelib/doc/doc.pri
@@ -1,2 +1,3 @@
-docs.commands += $$QT.core.bins/qdoc $$QT.core.sources/doc/qtcore.qdocconf
+qtPrepareTool(QDOC, qdoc)
+docs.commands += $$QDOC $$QT.core.sources/doc/qtcore.qdocconf
 QMAKE_EXTRA_TARGETS += docs
diff --git a/src/xml/doc/doc.pri b/src/xml/doc/doc.pri
index 4a0d2b9db7..d02e45e64e 100644
--- a/src/xml/doc/doc.pri
+++ b/src/xml/doc/doc.pri
@@ -1,2 +1,3 @@
-docs.commands += $$QT.core.bins/qdoc $$QT.xml.sources/doc/qtxml.qdocconf
+qtPrepareTool(QDOC, qdoc)
+docs.commands += $$QDOC $$QT.xml.sources/doc/qtxml.qdocconf
 QMAKE_EXTRA_TARGETS += docs