Silence some compiler warnings

This is what clang suggested in compiler warnings.

Signed-off-by: Robert C. Helling <helling@atdotde.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/stats/pieseries.h b/stats/pieseries.h
index c7e2af319..646c4bfbe 100644
--- a/stats/pieseries.h
+++ b/stats/pieseries.h
@@ -9,7 +9,7 @@
 #include <vector>
 #include <QString>
 
-class InformationBox;
+struct InformationBox;
 class QGraphicsEllipseItem;
 class QGraphicsScene;
 class QGraphicsSimpleTextItem;