diff --git a/docs/CMakeLists.txt b/docs/CMakeLists.txt
index c9ecc5ee1d..022b5d59fa 100644
--- a/docs/CMakeLists.txt
+++ b/docs/CMakeLists.txt
@@ -7,9 +7,6 @@ set(doxygen_output_dir "${CMAKE_CURRENT_BINARY_DIR}")
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/doxyfile.in"
   "${CMAKE_CURRENT_BINARY_DIR}/doxyfile")
 
-configure_file("${CMAKE_CURRENT_SOURCE_DIR}/conf.py.in"
-  "${CMAKE_CURRENT_SOURCE_DIR}/conf.py")
-
 add_custom_target(documentation
   COMMAND ${CMAKE_COMMAND} -E remove_directory ${CMAKE_CURRENT_BINARY_DIR}/html
   COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/doxyfile)