diff --git a/Framework/DataHandling/inc/MantidDataHandling/LoadSampleShape.h b/Framework/DataHandling/inc/MantidDataHandling/LoadSampleShape.h
index e1a9e57a4fed64be4748ba11abfc87eae05cbf89..3338cae78c313814a5ec004e766938bb5c43ed09 100644
--- a/Framework/DataHandling/inc/MantidDataHandling/LoadSampleShape.h
+++ b/Framework/DataHandling/inc/MantidDataHandling/LoadSampleShape.h
@@ -2,6 +2,7 @@
 #define DATAHANDLING_LOAD_SHAPE_H_
 
 #include "MantidGeometry/Objects/MeshObject.h"
+#include "MantidAPI/Algorithm.h"
 #include "MantidKernel/V3D.h"
 
 namespace Mantid {