diff --git a/matlab/TCV/tcv_requests_mapping.m b/matlab/TCV/tcv_requests_mapping.m
index 09180cc2d5abb0be96c216e318308404ffafb879..21c61bec63852c398bda186d50afa492957f6bbe 100644
--- a/matlab/TCV/tcv_requests_mapping.m
+++ b/matlab/TCV/tcv_requests_mapping.m
@@ -301,7 +301,7 @@ switch lower(data_request)
                      's_nel=interpos(gdat_tmp_s.t,gdat_tmp_s.data,gdat_tmp.t,-1.);b0_nel=interpos(gdat_tmpb0.t,gdat_tmpb0.data,gdat_tmp.t,-1.);' ...
                     'gdat_tmp.data = 0.0488e6.*(gdat_tmp.data/1e20).^0.717.*abs(b0_nel).^0.803.*s_nel.^0.941;' ...
                     'gdat_tmp.units=''W'';gdat_tmp.dimunits{1}=''s'';' ...
-                    'gdat_tmp.help=''Uses Eq(2) from Y R Martin et al 2008 J. Phys.: Conf. Ser. 123 012033 with toroidal Surface. Take "plh_a_r" to get Eq(3) with a and R0 instead'';'];
+                    'gdat_tmp.help=''Uses Eq(2) from Y R Martin et al 2008 J. Phys.: Conf. Ser. 123 012033 with toroidal Surface. Request "plh_a_r" to get Eq(3) with a and R0 instead'';'];
  case {'p_lh_a_r', 'plh_a_r'}
   mapping.label = 'P\_LH threshold with a, R0';
   mapping.timedim = 1;
@@ -312,7 +312,7 @@ switch lower(data_request)
                      'a_nel=interpos(gdat_tmp_a.t,gdat_tmp_a.data,gdat_tmp.t,-1.);b0_nel=interpos(gdat_tmpb0.t,gdat_tmpb0.data,gdat_tmp.t,-1.);' ...
                     'gdat_tmp.data = 2.15e6.*(gdat_tmp.data/1e20).^0.782.*abs(b0_nel).^0.772.*a_nel.^0.975.*gdat_tmpb0.r0.^0.999;' ...
                     'gdat_tmp.units=''W'';gdat_tmp.dimunits{1}=''s'';' ...
-                    'gdat_tmp.help=''Uses Eq(3) from Y R Martin et al 2008 J. Phys.: Conf. Ser. 123 012033 with a and R0. Take "plh" to get Eq(2) with toroidal Surface instead'';'];
+                    'gdat_tmp.help=''Uses Eq(3) from Y R Martin et al 2008 J. Phys.: Conf. Ser. 123 012033 with a and R0. Request "plh" to get Eq(2) with toroidal Surface instead'';'];
 
  case 'psi'
   mapping.timedim = 1;