diff --git a/tsg_io/readTsgDataNuka.m b/tsg_io/readTsgDataNuka.m
index 49b1349bbc6253b311475fbdea1bae75a905624c..a74c294b86311b9f94db2e16992a472608f58e42 100644
--- a/tsg_io/readTsgDataNuka.m
+++ b/tsg_io/readTsgDataNuka.m
@@ -67,9 +67,9 @@ ship_name=char(cellData{2}(1));
 
 if ~isempty(find(ship_name(ones(1,nrecords),:)~=char(cellData{2})))
 %        | ~strcmp(ship_name,'NUKA')
-  msg_error = ['TSG_GOSUD file_lecture : Open file error : ' filename];
+  msg_error = ['TSG_GOSUD file_lecture : Open file error : ', filename,...
+      '...file contains data from several ships'];
   warndlg( msg_error, '.transmit* error dialog');
-  sprintf('...file %s contains data from several ships\n', filename);
   error = -1;
   return;
 end