diff --git a/src/qml/compiler/qqmlpropertyvalidator.cpp b/src/qml/compiler/qqmlpropertyvalidator.cpp
index dd44a49896..9ea52e240d 100644
--- a/src/qml/compiler/qqmlpropertyvalidator.cpp
+++ b/src/qml/compiler/qqmlpropertyvalidator.cpp
@@ -41,6 +41,7 @@
 
 #include <private/qqmlcustomparser_p.h>
 #include <private/qqmlstringconverters_p.h>
+#include <QtCore/qdatetime.h>
 
 QT_BEGIN_NAMESPACE