diff --git a/DDG4/CMakeLists.txt b/DDG4/CMakeLists.txt
index 0a1c3e76f90d17e7aa3a912df98ab50a5adc2591..0ef01e51b8db35c20b7f0931d2cf371cf152867e 100644
--- a/DDG4/CMakeLists.txt
+++ b/DDG4/CMakeLists.txt
@@ -149,7 +149,7 @@ FOREACH(ddsimFile ${DDSIM_FILES})
   configure_file(python/DDSim/${ddsimFile} ${CMAKE_BINARY_DIR}/python/DDSim/${ddsimFile} @ONLY)
 ENDFOREACH()
 
-install(DIRECTORY python/DDSim DESTINATION ${DD4HEP_PYTHON_INSTALL_DIR})
+install(DIRECTORY ${CMAKE_BINARY_DIR}/python/DDSim DESTINATION ${DD4HEP_PYTHON_INSTALL_DIR})
 
 install(DIRECTORY examples DESTINATION examples/DDG4)