diff --git a/test/prep-dummy-soundcard.sh b/test/prep-dummy-soundcard.sh
index 047867e..bc81bb4 100644
--- a/test/prep-dummy-soundcard.sh
+++ b/test/prep-dummy-soundcard.sh
@@ -21,4 +21,4 @@ alias sound-service-0-12 snd-pcm-oss
 EOF
 modprobe snd-dummy 
 # ; modprobe snd-pcm-oss ; modprobe snd-mixer-oss ; modprobe snd-seq-oss
-mkdir tmp
+mkdir -p tmp && chmod 777 tmp