diff --git a/Code/Mantid/Kernel/inc/MantidKernel/TimeSeriesProperty.h b/Code/Mantid/Kernel/inc/MantidKernel/TimeSeriesProperty.h
index 250b687d88a7286bffeedb00a090f4a359cace16..949f214bff22e04412e8dd1b0d34a2f9a908ff81 100644
--- a/Code/Mantid/Kernel/inc/MantidKernel/TimeSeriesProperty.h
+++ b/Code/Mantid/Kernel/inc/MantidKernel/TimeSeriesProperty.h
@@ -834,7 +834,7 @@ public:
 
 
 //================================================================================================
-TimeSeriesPropertyStatistics getTimeSeriesPropertyStatistics(TimeSeriesProperty<double> * tsp);
+DLLExport TimeSeriesPropertyStatistics getTimeSeriesPropertyStatistics(TimeSeriesProperty<double> * tsp);
 
 //TimeSeriesPropertyStatistics getTimeSeriesPropertyStatistics(TimeSeriesProperty<int> * tsp);
 //template<typename TYPE>