diff --git a/matlab/TCV_IMAS/tcv_get_ids_core_sources.m b/matlab/TCV_IMAS/tcv_get_ids_core_sources.m
index 4104ea8a1e223eed7447e09aaff562f87f0149f6..1a3c531d034e868b0a595929cbe2b9c3591108ac 100644
--- a/matlab/TCV_IMAS/tcv_get_ids_core_sources.m
+++ b/matlab/TCV_IMAS/tcv_get_ids_core_sources.m
@@ -78,7 +78,7 @@ if check_nodes_filled(params_core_sources.shot,nodes_liuqe)
   % define liuqe_time from Ip_liu
   liuqe_time = Ip_liu.t;
 else
-  error('Liuqe nodes %s not filled. Contact O. Sauter.')
+  error('Liuqe nodes %s not filled. Contact O. Sauter.',nodes_liuqe)
 end
 %% initialize source from template
 % ohm