diff --git a/libs/ardour/SConscript b/libs/ardour/SConscript
index 6fe6a2ae36..846e547e43 100644
--- a/libs/ardour/SConscript
+++ b/libs/ardour/SConscript
@@ -60,7 +60,6 @@ bundle.cc
 chan_count.cc
 chan_mapping.cc
 configuration.cc
-control_outputs.cc
 control_protocol_manager.cc
 control_protocol_search_path.cc
 crossfade.cc