diff --git a/docs/cmdline-opts/CMakeLists.txt b/docs/cmdline-opts/CMakeLists.txt
index 99ec66c318..d165f841ec 100644
--- a/docs/cmdline-opts/CMakeLists.txt
+++ b/docs/cmdline-opts/CMakeLists.txt
@@ -29,8 +29,9 @@ transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.
 include("${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
 
 add_custom_command(OUTPUT "${MANPAGE}"
-  COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && "${PERL_EXECUTABLE}" ${PROJECT_SOURCE_DIR}/scripts/managen mainpage ${DPAGES} > "${MANPAGE}"
-  COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && "${PERL_EXECUTABLE}" ${PROJECT_SOURCE_DIR}/scripts/managen ascii ${DPAGES} > "${ASCIIPAGE}"
+  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+  COMMAND "${PERL_EXECUTABLE}" ${PROJECT_SOURCE_DIR}/scripts/managen mainpage ${DPAGES} > "${MANPAGE}"
+  COMMAND "${PERL_EXECUTABLE}" ${PROJECT_SOURCE_DIR}/scripts/managen ascii ${DPAGES} > "${ASCIIPAGE}"
   VERBATIM
 )
 add_custom_target(generate-curl.1 ALL DEPENDS "${MANPAGE}")