diff --git a/Framework/Algorithms/test/ConjoinXRunsTest.h b/Framework/Algorithms/test/ConjoinXRunsTest.h
index 7097b4eea0b3732604f09e369bbb955cf5b281f2..2e80a05ce3c93058f731be580536879708192da9 100644
--- a/Framework/Algorithms/test/ConjoinXRunsTest.h
+++ b/Framework/Algorithms/test/ConjoinXRunsTest.h
@@ -4,6 +4,7 @@
 #include <cxxtest/TestSuite.h>
 
 #include "MantidAPI/Axis.h"
+#include "MantidAPI/ITableWorkspace.h"
 #include "MantidAPI/MatrixWorkspace.h"
 #include "MantidAPI/WorkspaceFactory.h"
 #include "MantidAlgorithms/AddSampleLog.h"