diff --git a/declarativeimports/core/datasource_p.h b/declarativeimports/core/datasource_p.h
index 86974d276..eee5441b7 100644
--- a/declarativeimports/core/datasource_p.h
+++ b/declarativeimports/core/datasource_p.h
@@ -36,7 +36,6 @@ class QDeclarativePropertyMap;
 
 namespace Plasma
 {
-  class Applet;
   class DataEngine;
 
   class DataSource : public QObject, DataEngineConsumer