--- a/zs.go	Fri Dec 05 18:09:03 2014 +0000
+++ b/zs.go	Fri Dec 05 18:21:42 2014 +0000
@@ -110,10 +110,13 @@
 	outbuf := bytes.NewBuffer(nil)
 	err := run(path.Join(ZSDIR, cmd[0]), cmd[1:], vars, outbuf)
 	if err != nil {
-		log.Println(err)
+		if _, ok := err.(*exec.ExitError); ok {
+			return "", err
+		}
 		outbuf = bytes.NewBuffer(nil)
 		err := run(cmd[0], cmd[1:], vars, outbuf)
-		if err != nil {
+		// Return exit errors, but ignore if the command was not found
+		if _, ok := err.(*exec.ExitError); ok {
 			return "", err
 		}
 	}