diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index e5c5eb6a..80f39ab3 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -28,6 +28,7 @@ Michael Teichgräber <mt@ib.wmipf.de>
 Nikolai Saoukh <nikolai.saoukh@gmail.com>
 Peter Saveliev <svinota.saveliev@gmail.com>
 Richard Miller <millerresearch@gmail.com>
+Rob Kroeger <robkroeger@gmail.com>
 Rob Pike <robpike@gmail.com>
 Russ Cox <rsc@swtch.com>
 Sean McKean <smckean83@gmail.com>
diff --git a/mac/Plumb.app/Contents/MacOS/plumb b/mac/Plumb.app/Contents/MacOS/plumb
index fc5e2c30..f98cd2e7 100755
--- a/mac/Plumb.app/Contents/MacOS/plumb
+++ b/mac/Plumb.app/Contents/MacOS/plumb
@@ -1,6 +1,8 @@
 #!/bin/bash
 
-. ~/.bashrc
+if [ -e ~/.bashrc ] ; then
+	. ~/.bashrc
+fi
 PLAN9=${PLAN9:-/usr/local/plan9}
 
 bin=$PLAN9/bin