diff --git a/src/assistant/qcollectiongenerator/main.cpp b/src/assistant/qcollectiongenerator/main.cpp
index d96fff0df5cb28ea62073b0d9ebe348ba899d150..2f39f12c01cb2978fab7eaeb0330268de286c414 100644
--- a/src/assistant/qcollectiongenerator/main.cpp
+++ b/src/assistant/qcollectiongenerator/main.cpp
@@ -45,6 +45,7 @@
 #include <private/qhelpgenerator_p.h>
 #include <private/qhelpprojectdata_p.h>
 
+#include <QtCore/QDataStream>
 #include <QtCore/QDir>
 #include <QtCore/QMap>
 #include <QtCore/QFileInfo>
diff --git a/src/linguist/shared/qm.cpp b/src/linguist/shared/qm.cpp
index 77d66aa2cfc210e5db098dc3f2515b65d50eadc3..acdcaa91449cfe7a8ab39da32739b586ce9a7cf9 100644
--- a/src/linguist/shared/qm.cpp
+++ b/src/linguist/shared/qm.cpp
@@ -44,6 +44,7 @@
 #ifndef QT_BOOTSTRAPPED
 #include <QtCore/QCoreApplication>
 #endif
+#include <QtCore/QDataStream>
 #include <QtCore/QDebug>
 #include <QtCore/QDir>
 #include <QtCore/QFile>