diff --git a/CMakeLists.txt b/CMakeLists.txt
index d976eb87f..0b88e91cb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,8 +27,6 @@ option(ENABLE_UIUC_MODEL "Set to ON to build FlightGear with UIUCModel FDM" ON)
 option(ENABLE_LARCSIM "Set to ON to build FlightGear with LaRCsim FDM" ON)
 option(ENABLE_YASIM "Set to ON to build FlightGear with YASIM FDM" ON)
 option(ENABLE_JSBSIM "Set to ON to build FlightGear with JSBSim FDM" ON)
-
-option(ATCDCL "Set to ON to build FlightGear with Dave Luff's ATC code" OFF)
 option(EVENT_INPUT "Set to ON to build FlightGear with event-based Input support" OFF)
 
 if(LOGGING)
@@ -41,10 +39,6 @@ if(${SP_FDMS})
 	set(ENABLE_SP_FDM 1)
 endif()
 
-if(ATCDCL)
-	set(ENABLE_ATCDCL 1)
-endif()
-
 if(EVENT_INPUT)
 	message(STATUS "checking event-based Input")
 	IF(APPLE)