diff --git a/gtk2_ardour/ardev_common.sh.in b/gtk2_ardour/ardev_common.sh.in
index 994bf51224..3c9a717412 100644
--- a/gtk2_ardour/ardev_common.sh.in
+++ b/gtk2_ardour/ardev_common.sh.in
@@ -13,7 +13,7 @@ export GTK2_RC_FILES=/nonexistent
 # can find all the components.
 #
 
-export ARDOUR_SURFACES_PATH=$libs/surfaces/osc:$libs/surfaces/faderport8:$libs/surfaces/faderport:$libs/surfaces/generic_midi:$libs/surfaces/tranzport:$libs/surfaces/powermate:$libs/surfaces/mackie:$libs/surfaces/wiimote:$libs/surfaces/push2:$libs/surfaces/maschine2
+export ARDOUR_SURFACES_PATH=$libs/surfaces/osc:$libs/surfaces/faderport8:$libs/surfaces/faderport:$libs/surfaces/generic_midi:$libs/surfaces/tranzport:$libs/surfaces/powermate:$libs/surfaces/mackie:$libs/surfaces/us2400:$libs/surfaces/wiimote:$libs/surfaces/push2:$libs/surfaces/maschine2
 export ARDOUR_PANNER_PATH=$libs/panners
 export ARDOUR_DATA_PATH=$TOP:$TOP/build:$TOP/gtk2_ardour:$TOP/build/gtk2_ardour:.
 export ARDOUR_MIDIMAPS_PATH=$TOP/midi_maps:.