diff --git a/src/new/thermal/FT_init_thermal_mirror.m b/src/new/thermal/FT_init_thermal_mirror.m
index 4cb8150f80ba89ddaf6aca461000ce2eaeed373c..febd77c70653b526e61745d7eda5f1cc3cdcef6e 100644
--- a/src/new/thermal/FT_init_thermal_mirror.m
+++ b/src/new/thermal/FT_init_thermal_mirror.m
@@ -1,5 +1,5 @@
 %--------------------------------------------------------------------------
-% function [mirror] = FT_init_thermal_mirror(dn_dT,Cabs,Babs,K,E,a,h)
+% function [mirror] = FT_init_thermal_mirror(dn_dT,Cabs,Babs,K,E,alpha,Y,pois,a,h)
 %
 % A Matlab function which initalises the thermal mirror structure which 
 % stores parameters and material properties for a mirror for use in