diff --git a/gtk2_ardour/ardev_common.sh.in b/gtk2_ardour/ardev_common.sh.in
index 116a6d88fc..0931bef583 100644
--- a/gtk2_ardour/ardev_common.sh.in
+++ b/gtk2_ardour/ardev_common.sh.in
@@ -17,7 +17,7 @@ fi
 
 export VAMP_PATH=$libs/vamp-plugins${VAMP_PATH:+:$VAMP_PATH}
 
-export LD_LIBRARY_PATH=$libs/vamp-sdk:$libs/surfaces:$libs/surfaces/control_protocol:$libs/ardour:$libs/midi++2:$libs/pbd:$libs/rubberband:$libs/soundtouch:$libs/gtkmm2ext:$libs/gnomecanvas:$libs/libsndfile:$libs/appleutility:$libs/taglib:$libs/evoral:$libs/evoral/src/libsmf:$libs/audiographer:$libs/timecode:${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
+export LD_LIBRARY_PATH=$libs/qm-dsp:$libs/vamp-sdk:$libs/surfaces:$libs/surfaces/control_protocol:$libs/ardour:$libs/midi++2:$libs/pbd:$libs/rubberband:$libs/soundtouch:$libs/gtkmm2ext:$libs/gnomecanvas:$libs/libsndfile:$libs/appleutility:$libs/taglib:$libs/evoral:$libs/evoral/src/libsmf:$libs/audiographer:$libs/timecode:${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
 
 # DYLD_LIBRARY_PATH is for darwin.
 export DYLD_FALLBACK_LIBRARY_PATH=$LD_LIBRARY_PATH