diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index 3531be412e..5098955825 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -294,7 +294,7 @@ QPixmap QPixmapIconEngine::pixmap(const QSize &size, QIcon::Mode mode, QIcon::St
 
     QString key = QLatin1String("qt_")
                   % HexString<quint64>(pm.cacheKey())
-                  % HexString<uint>(pe->mode)
+                  % HexString<uint>(pe ? pe->mode : QIcon::Normal)
                   % HexString<quint64>(QGuiApplication::palette().cacheKey())
                   % HexString<uint>(actualSize.width())
                   % HexString<uint>(actualSize.height());