diff --git a/src/gui/util/qtexturefiledata.cpp b/src/gui/util/qtexturefiledata.cpp
index ae230800c0..ebf46f8e4e 100644
--- a/src/gui/util/qtexturefiledata.cpp
+++ b/src/gui/util/qtexturefiledata.cpp
@@ -39,6 +39,7 @@
 
 #include "qtexturefiledata_p.h"
 #include <QMetaEnum>
+#include <QSize>
 #if QT_CONFIG(opengl)
 #include <QOpenGLTexture>
 #endif