diff --git a/examples/symba_mars_disk/param.in b/examples/symba_mars_disk/param.in
index 7fb06127a..e57a67024 100644
--- a/examples/symba_mars_disk/param.in
+++ b/examples/symba_mars_disk/param.in
@@ -1,6 +1,6 @@
 !Parameter file for the SyMBA-RINGMOONS test
 T0             0.0 
-TSTOP          3e3
+TSTOP          1.0e7
 DT             500.0
 PL_IN          mars.in
 TP_IN          tp.in