diff --git a/examples/symba_mars_disk/param.in b/examples/symba_mars_disk/param.in
index 1ff512a1d..a50be00e4 100644
--- a/examples/symba_mars_disk/param.in
+++ b/examples/symba_mars_disk/param.in
@@ -8,10 +8,10 @@ TP_IN          tp.in
 IN_TYPE        ASCII
 ISTEP_OUT      1
 ISTEP_DUMP     1
-BIN_OUT        bin.dat
-OUT_TYPE       REAL8
-!BIN_OUT        bin.nc
-!UT_TYPE       NETCDF_DOUBLE
+!BIN_OUT        bin.dat
+!OUT_TYPE       REAL8
+BIN_OUT        bin.nc
+OUT_TYPE       NETCDF_DOUBLE
 PARTICLE_OUT   particle.dat
 OUT_FORM       XVEL
 OUT_STAT       REPLACE