diff --git a/matlab/TCV_IMAS/tcv_get_ids_soft_x_rays.m b/matlab/TCV_IMAS/tcv_get_ids_soft_x_rays.m
index b62d1bdedafd4c9cc5bd1e312b3b96c9e3b21fdc..e3d55505b3fc09287066de2f46b7dc4c52dbc393 100644
--- a/matlab/TCV_IMAS/tcv_get_ids_soft_x_rays.m
+++ b/matlab/TCV_IMAS/tcv_get_ids_soft_x_rays.m
@@ -22,10 +22,13 @@ function [ids_soft_x_rays,ids_soft_x_rays_description] =  ...
 if exist('gdat_params')
   [ids_soft_x_rays, ~] = tcv_ids_headpart(shot, ids_soft_x_rays_empty, ...
     'soft_x_rays','homogeneous_time',1,'gdat_params',gdat_params, ...
+    'comment','RADCAM Soft X-Ray filered diodes', ...
      varargin{:});
 else
   [ids_soft_x_rays, ~] = tcv_ids_headpart(shot, ids_soft_x_rays_empty, ...
-      'soft_x_rays','homogeneous_time',0,varargin{:});
+      'soft_x_rays','homogeneous_time',0, ...
+      'comment','RADCAM Soft X-Ray filered diodes', ...
+      varargin{:});
 end
 
 ids_soft_x_rays_description = struct();