diff --git a/choose_random_ambience.sh b/choose_random_ambience.sh
index 95d65e1..574a385 100644
--- a/choose_random_ambience.sh
+++ b/choose_random_ambience.sh
@@ -1,7 +1,22 @@
 #!/bin/bash
 
-set -ex
+#set -ex
+
+duration=$1
+
+if [ -z "$duration" ]
+then
+    echo "Missing required argument duration, ex 20m"
+    exit 1
+fi
+
+echo "Duration: $duration"
+
 choices=$(ls *ambience*.mp3)
 shuffled=$(printf "%s\n" "${choices[@]}" | shuf -n1)
 echo $shuffled
-totem ${shuffled[ $RANDOM % ${#shuffled[@]} ]}
+timeout $duration totem ${shuffled[ $RANDOM % ${#shuffled[@]} ]}
+if [ $? -eq 124 ]
+then
+    totem '/media/cowley/muninn/ambience/Maarten Schellekens - Spring Morning.mp3'
+fi