diff --git a/gtk2_ardour/ardbg b/gtk2_ardour/ardbg
index 115db85f59..933b5ba720 100755
--- a/gtk2_ardour/ardbg
+++ b/gtk2_ardour/ardbg
@@ -1,4 +1,4 @@
 #!/bin/sh
 dir=`dirname "$0"`
-source $dir/ardev_common.sh
+. $dir/ardev_common.sh
 exec gdb gtk2_ardour/ardour.bin $*
diff --git a/gtk2_ardour/ardev b/gtk2_ardour/ardev
index d3d44e55fe..04719908b4 100755
--- a/gtk2_ardour/ardev
+++ b/gtk2_ardour/ardev
@@ -1,3 +1,3 @@
 #!/bin/sh
-source `dirname "$0"`/ardev_common.sh
+. `dirname "$0"`/ardev_common.sh
 exec gtk2_ardour/ardour.bin --novst $*
diff --git a/gtk2_ardour/arval b/gtk2_ardour/arval
index cea6299d05..d427ae62e1 100755
--- a/gtk2_ardour/arval
+++ b/gtk2_ardour/arval
@@ -1,3 +1,3 @@
 #!/bin/sh
-source ardev_common.sh
+. ardev_common.sh
 exec valgrind  --num-callers=50 --tool=memcheck gtk2_ardour/ardour.bin --novst $*