diff --git a/gtk2_ardour/ardev_common.sh.in b/gtk2_ardour/ardev_common.sh.in
index 29a1dff241..210f282e76 100644
--- a/gtk2_ardour/ardev_common.sh.in
+++ b/gtk2_ardour/ardev_common.sh.in
@@ -17,6 +17,7 @@ export ARDOUR_PANNER_PATH=$libs/panners/2in2out:$libs/panners/1in2out:$libs/pann
 export ARDOUR_DATA_PATH=$TOP/gtk2_ardour:build/gtk2_ardour:.
 export ARDOUR_MIDIMAPS_PATH=$TOP/midi_maps:.
 export ARDOUR_MCP_PATH=$TOP/mcp:.
+export ARDOUR_EXPORT_FORMATS_PATH=$TOP/export:.
 
 #
 # even though we set the above variables, ardour requires that these