diff --git a/matlab/TCV/gdat_tcv.m b/matlab/TCV/gdat_tcv.m
index ba6cab40f7388c591dccadd87cda1db222ad8fa4..ea0a4a1ddb30c116e5643f3704faa66fe8ae9d6c 100644
--- a/matlab/TCV/gdat_tcv.m
+++ b/matlab/TCV/gdat_tcv.m
@@ -829,7 +829,7 @@ elseif strcmp(mapping_for_tcv.method,'switchcase')
    case {'b0'}
     % B0 at R0=0.88
     r0exp=0.88;
-    added_correction_str='';
+    added_correction_str=''
     if isfield(gdat_data.gdat_params,'source') && ~isempty(gdat_data.gdat_params.source) ...
           && length(gdat_data.gdat_params.source)>=5 && strcmp(lower(gdat_data.gdat_params.source(1:5)),'liuqe')
       % expect liuqe or liuqe.m to have liuqe time-base, otherwise give full time base
@@ -850,7 +850,6 @@ elseif strcmp(mapping_for_tcv.method,'switchcase')
       else
         if liuqe_matlab==0
           added_correction = 1.0; % correction already in liuqe.f
-          added_correction_str = [''];
           nodenameeff = ['tcv_eq(''BZERO'',''LIUQE' substr_liuqe_tcv_eq ''')'];
         else
           if isempty(substr_liuqe); substr_liuqe = '_1'; end