diff --git a/brunel_example/CMakeLists.txt b/brunel_example/CMakeLists.txt
index 4bcfcfd6494a095545e3cbca253b741f25d10cdc..226697ef564dbc7ac2ea7bad2be63caedb2a141b 100644
--- a/brunel_example/CMakeLists.txt
+++ b/brunel_example/CMakeLists.txt
@@ -26,5 +26,5 @@ file(GENERATE
     OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/run_sim.sh
     CONTENT
 "source ${NEST_DIR}/bin/nest_vars.sh
-${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/${NEST_SIM_SOURCE}"
+${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/nest_sim.py"
   )
\ No newline at end of file