diff --git a/Code/Mantid/MantidPlot/CMakeLists.txt b/Code/Mantid/MantidPlot/CMakeLists.txt
index fdf4dba815d78ca7622a35e6fab97cfee79060ac..db8de74454c8c81d9ad8645293f61c21eb1f793e 100644
--- a/Code/Mantid/MantidPlot/CMakeLists.txt
+++ b/Code/Mantid/MantidPlot/CMakeLists.txt
@@ -728,6 +728,7 @@ add_definitions ( -DQSCINTILLA_DLL )     # Will only have an effect on Windows (
 include_directories ( src )
 include_directories ( src/lib/include )
 include_directories ( src/lib/3rdparty/qtcolorpicker/src )
+include_directories ( ../MantidQt/SliceViewer/inc )
 
 
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