diff --git a/source/ArmarXGui/gui-plugins/LoggingPlugin/ArmarXLogViewer/LogViewer.cpp b/source/ArmarXGui/gui-plugins/LoggingPlugin/ArmarXLogViewer/LogViewer.cpp
index a2613ad9c265681f1f6eca90c8dd74fa8415f85d..ed95de1d7021acfe5a340e4f27b4c1c6ee71cf89 100644
--- a/source/ArmarXGui/gui-plugins/LoggingPlugin/ArmarXLogViewer/LogViewer.cpp
+++ b/source/ArmarXGui/gui-plugins/LoggingPlugin/ArmarXLogViewer/LogViewer.cpp
@@ -51,6 +51,7 @@ LogViewer::LogViewer() :
     customToolbar(0)
 
 {
+    qRegisterMetaType<Qt::Orientation>("Qt::Orientation");
     ui.setupUi(getWidget());
 
     for (int i = 0; i < eLogLevelCount; i++)