diff --git a/matlab/TCV_IMAS/tcv_get_ids_bolometer.m b/matlab/TCV_IMAS/tcv_get_ids_bolometer.m
index 3c1af5a009ada3446092adfd72f2a977f809a835..58b3a2a9e6ffd8f498d53cce098d2256bece9333 100644
--- a/matlab/TCV_IMAS/tcv_get_ids_bolometer.m
+++ b/matlab/TCV_IMAS/tcv_get_ids_bolometer.m
@@ -172,8 +172,14 @@ if status
   ids_bolometer.code.library{2}.parameters = '';
   
   
-  % FIXME: Values of bolo_u_confidence don't match output_flag
-  ids_bolometer.code.output_flag=bolo_u_confidence; 
+  % Translate bolo_u_confidence values to ids_bolometer.code.output_flag values
+  if bolo_u_confidence == 0
+      ids_bolometer.code.output_flag=1; 
+  elseif bolo_u_confidence == 1 
+      ids_bolometer.code.output_flag=0; 
+  else
+      ids_bolometer.code.output_flag=-abs(bolo_u_confidence); 
+  end
   ids_bolometer.time = bolo_u_intensity.t;
 else
   warning('Failed to load data for shot %d',shot);