diff --git a/fdelmodc/getParameters.c b/fdelmodc/getParameters.c
index dca4f5248913ee2d3458554878fe86becb39e6c8..de3b10bf1f2adf60f02d68eacefcdb0e034bf047 100644
--- a/fdelmodc/getParameters.c
+++ b/fdelmodc/getParameters.c
@@ -1110,7 +1110,7 @@ int getParameters(modPar *mod, recPar *rec, snaPar *sna, wavPar *wav, srcPar *sr
 	rec->skipdt=NINT(dtrcv/dt);
 	dtrcv = mod->dt*rec->skipdt;
 	if (!getparfloat("rec_delay",&rdelay)) rdelay=0.0;
-	if (!getparint("rec_ntsam",&rec->nt)) rec->nt=NINT((mod->tmod-rdelay)/dtrcv);
+	if (!getparint("rec_ntsam",&rec->nt)) rec->nt=NINT((mod->tmod-rdelay)/dtrcv)+1;
 	if (!getparint("rec_int_p",&rec->int_p)) rec->int_p=0;
 	if (!getparint("rec_int_vx",&rec->int_vx)) rec->int_vx=0;
 	if (!getparint("rec_int_vz",&rec->int_vz)) rec->int_vz=0;