diff --git a/src/lib/webengine/javascript/externaljsobject.h b/src/lib/webengine/javascript/externaljsobject.h
index 031282801..86b240b27 100644
--- a/src/lib/webengine/javascript/externaljsobject.h
+++ b/src/lib/webengine/javascript/externaljsobject.h
@@ -25,7 +25,7 @@ class AutoFillJsObject;
 
 class QWebChannel;
 
-class ExternalJsObject : public QObject
+class QUPZILLA_EXPORT ExternalJsObject : public QObject
 {
     Q_OBJECT
     Q_PROPERTY(QObject* speedDial READ speedDial CONSTANT)