diff --git a/gtk2_ardour/ardbg b/gtk2_ardour/ardbg
index 4ffa3cda6e..71ec752e3f 100755
--- a/gtk2_ardour/ardbg
+++ b/gtk2_ardour/ardbg
@@ -2,4 +2,4 @@
 . ./ardev_common.sh
 LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
 export ARDOUR_INSIDE_GDB=1
-exec gdb --args $EXECUTABLE "$@"
+exec gdb --args $TOP/$EXECUTABLE "$@"
diff --git a/gtk2_ardour/ardbg-waf b/gtk2_ardour/ardbg-waf
index a2139baccb..e515e7bb8d 100755
--- a/gtk2_ardour/ardbg-waf
+++ b/gtk2_ardour/ardbg-waf
@@ -2,4 +2,4 @@
 . ../build/default/gtk2_ardour/ardev_common_waf.sh
 LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
 export ARDOUR_INSIDE_GDB=1
-exec gdb --args $EXECUTABLE "$@"
+exec gdb --args $TOP/$EXECUTABLE "$@"