diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd04e601..905f636d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -179,9 +179,9 @@ install(TARGETS tests RUNTIME DESTINATION bin)
 
 find_package(PythonInterp 3)
 if (PYTHONINTERP_FOUND)
-  add_custom_command(OUTPUT single/sol.hpp COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/single && ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/single.py --output ${CMAKE_CURRENT_BINARY_DIR}/single/sol.hpp DEPENDS ${HEADER_SRCS})
-  add_custom_target(single_sol DEPENDS single/sol.hpp)
-  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/single/sol.hpp" DESTINATION include/single)
+  add_custom_command(OUTPUT single/sol/sol.hpp COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/single.py --output ${CMAKE_CURRENT_SOURCE_DIR}/single/sol/sol.hpp DEPENDS ${HEADER_SRCS})
+  add_custom_target(single_sol DEPENDS single/sol/sol.hpp)
+  install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/single/sol/sol.hpp" DESTINATION include/single/sol)
   message(STATUS "single_sol can be generated as python 3 has been found.")
 else()
   message(STATUS "single_sol cannot be generated as python 3 has not been found.")