diff --git a/glapplet.cpp b/glapplet.cpp
index 5ceb94ae9..b6cc2798e 100644
--- a/glapplet.cpp
+++ b/glapplet.cpp
@@ -99,6 +99,13 @@ void GLApplet::deleteTexture(GLuint textureId)
     d->dummy->deleteTexture(textureId);
 }
 
+void GLApplet::paintGLInterface(QPainter *painter,
+                                const QStyleOptionGraphicsItem *option)
+{
+    Q_UNUSED(painter)
+    Q_UNUSED(option)
+}
+
 static inline QPainterPath headerPath(const QRectF &r, int roundness,
                                       int headerHeight=10)
 {
diff --git a/glapplet.h b/glapplet.h
index 2535d0d50..880100492 100644
--- a/glapplet.h
+++ b/glapplet.h
@@ -69,7 +69,7 @@ class PLASMA_EXPORT GLApplet : public Applet
          * using OpenGL api directly is supported.
          */
         virtual void paintGLInterface(QPainter *painter,
-                                      const QStyleOptionGraphicsItem *option) = 0;
+                                      const QStyleOptionGraphicsItem *option);
         void makeCurrent();
     private:
         virtual void paintInterface(QPainter *painter,