diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index eaad4db..076f0c9 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -4,10 +4,6 @@ include_directories(${CMAKE_SOURCE_DIR}/lib ${CMAKE_BINARY_DIR}/lib)
 # Tests don't need to go into toplevel/bin, they are fine in the current dir.
 set(EXECUTABLE_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR} )
 
-# This can be used for finding data files in the source dir
-add_definitions( -DTDESRCDIR=\\"${CMAKE_CURRENT_SOURCE_DIR}\\" )
-
-
 set(testconstants_SRCS testconstants.cc)
 trinity_add_executable(testconstants ${testconstants_SRCS})
 target_link_libraries(testconstants kpilot ${QT_LIBRARIES})