diff --git a/gtk2_ardour/arval b/gtk2_ardour/arval
index 5661b4cd11..7267857348 100755
--- a/gtk2_ardour/arval
+++ b/gtk2_ardour/arval
@@ -1,4 +1,4 @@
 #!/bin/sh
-. ardev_common.sh
+. `dirname "$0"`/ardev_common.sh
 export ARDOUR_RUNNING_UNDER_VALGRIND=TRUE
 exec valgrind  --num-callers=50 --tool=memcheck $EXECUTABLE --novst "$@"