diff --git a/Code/Mantid/docs/CMakeLists.txt b/Code/Mantid/docs/CMakeLists.txt
index be6e1bc8a24bc60b5d50f669714a374c21358084..aa074d79122f1ccd9af665b5df60b123ebe5eb25 100644
--- a/Code/Mantid/docs/CMakeLists.txt
+++ b/Code/Mantid/docs/CMakeLists.txt
@@ -28,7 +28,6 @@ if ( SPHINX_FOUND )
 
   # doctest target
   set ( BUILDER doctest )
-  set ( SCREENSHOTS_DIR "" ) # no screenshots
   configure_file ( runsphinx.py.in runsphinx_doctest.py @ONLY )
   add_custom_target ( ${TARGET_PREFIX}-test
     COMMAND ${DOCS_RUNNER_EXE} -xq runsphinx_doctest.py