diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9741b350fc4d5b0b18b02d22a637af381f6ee0d3..57f4d0bdecd07cc61dfae02754892938b0c597f7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,6 +41,8 @@ if(NOT PYTHON_EXECUTABLE)
     set(PYTHON_EXECUTABLE python3)
 endif()
 
+file(COPY runtime DESTINATION ${CMAKE_BINARY_DIR})
+
 execute_process(
     COMMAND ${PYTHON_EXECUTABLE} setup.py build
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})