diff --git a/tools/cooja/contiki_tests/sky_shell_collect.csc b/tools/cooja/contiki_tests/sky_shell_collect.csc
index bd26ba2e9..b2d30fadc 100644
--- a/tools/cooja/contiki_tests/sky_shell_collect.csc
+++ b/tools/cooja/contiki_tests/sky_shell_collect.csc
@@ -350,8 +350,7 @@
   <plugin>
     se.sics.cooja.plugins.ScriptRunner
     <plugin_config>
-      <script>TIMEOUT(500000, print_stats());
-
+      <script>
 function
 print_stats()
 {
@@ -394,9 +393,10 @@ print_stats()
 	  "% tx " + 100 * total_transmit / (total_cpu + total_lpm) +
   	  "% average latency " + total_latency / (4096 * total_received) +
 	  " ms \n");
-	  
 }
 
+TIMEOUT(500000, print_stats());
+
 /* Conf. */
 booted = new Array();
 count = new Array();