diff --git a/matlab/TCV_IMAS/plot_connection_matrices.m b/matlab/TCV_IMAS/plot_connection_matrices.m
index b3e8be0f2b8a5c352a9215b0aa907e97db70028b..0d452f90fe356a52ca1739dc570c2b14ac843d64 100644
--- a/matlab/TCV_IMAS/plot_connection_matrices.m
+++ b/matlab/TCV_IMAS/plot_connection_matrices.m
@@ -28,9 +28,9 @@ for kk=1:info_pf_active.ntotcircuits
       addcolor = '\color{green}';
     end
     
-    xlab{index} = [addcolor info_pf_active.supply{ii}.name{:} 'in'];
+    xlab{index} = [addcolor info_pf_active.supply{ii}.name 'in'];
     index = index +1;
-    xlab{index} = [addcolor info_pf_active.supply{ii}.name{:} 'out'];
+    xlab{index} = [addcolor info_pf_active.supply{ii}.name 'out'];
   end
   for ii=1:info_pf_active.ntotcoils
     if any(ii==info_pf_active.circuit{kk}.coils_ind_belonging_to_circuit)