diff --git a/src/corelib/io/qurlidna.cpp b/src/corelib/io/qurlidna.cpp
index e28d886c3b..5b9ca6ca1b 100644
--- a/src/corelib/io/qurlidna.cpp
+++ b/src/corelib/io/qurlidna.cpp
@@ -41,6 +41,8 @@
 
 #include "qurl_p.h"
 
+#include <QtCore/qstringlist.h>
+
 QT_BEGIN_NAMESPACE
 
 // needed by the punycode encoder/decoder
diff --git a/src/corelib/io/qurlquery.cpp b/src/corelib/io/qurlquery.cpp
index ccb03611f5..2e2db11558 100644
--- a/src/corelib/io/qurlquery.cpp
+++ b/src/corelib/io/qurlquery.cpp
@@ -42,6 +42,8 @@
 #include "qurlquery.h"
 #include "qurl_p.h"
 
+#include <QtCore/qstringlist.h>
+
 QT_BEGIN_NAMESPACE
 
 /*!