diff --git a/run_analysis.sh b/run_analysis.sh
index 4ab90b5..feeefaa 100755
--- a/run_analysis.sh
+++ b/run_analysis.sh
@@ -4,6 +4,8 @@
 # the analyses. Parameters that this script should control: Δt, σ type, input
 # dataset(lightcurve directory), more?
 
+ref_band=
+
 mkdir -p analyses/tables
 
 #for analysis in analyses/*