diff --git a/src/plugins/coreplugin/corejsextensions.h b/src/plugins/coreplugin/corejsextensions.h
index 4a061b5dcb1..2cfa67366f2 100644
--- a/src/plugins/coreplugin/corejsextensions.h
+++ b/src/plugins/coreplugin/corejsextensions.h
@@ -33,6 +33,7 @@
 
 #include <utils/stringutils.h>
 
+#include <QObject>
 #include <QSet>
 
 namespace Core {