diff --git a/src/hev-conf.c b/src/hev-conf.c
index 9dc0331..8cbf7b9 100644
--- a/src/hev-conf.c
+++ b/src/hev-conf.c
@@ -179,7 +179,7 @@ hev_conf_init (int argc, char *argv[])
     }
 
     if (tmsec <= 0) {
-        tmsec = 120000;
+        tmsec = 300000;
     }
 
     return 0;