diff --git a/script/RFscan/SchottkyScan.py b/script/RFscan/SchottkyScan.py
index 8fca9d3..a73c917 100644
--- a/script/RFscan/SchottkyScan.py
+++ b/script/RFscan/SchottkyScan.py
@@ -78,6 +78,6 @@ if do_elog:
         log_msg = log_msg + "Data file:    " + get_exec_pars().path    
         elog("Schottky Scan", log_msg, get_plot_snapshots())
 
-set_return(bph_ref, rph_ref)
+set_return([bph_ref, rph_ref])