diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 74d260282fa..f89ba08b153 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -282,6 +282,8 @@ ListOfDirectories=List of OpenDocument templates directories
 ListOfDirectoriesForModelGenODT=List of directories containing templates files with OpenDocument format.<br><br>Put here full path of directories.<br>Add a carriage return between eah directory.<br>To add a directory of the GED module, add here <b>DOL_DATA_ROOT/ecm/yourdirectoryname</b>.<br><br>Files in those directories must end with <b>.odt</b>. 
 NumberOfModelFilesFound=Number of ODT templates files found in those directories
 ExampleOfDirectoriesForModelGen=Examples of syntax:<br>c:\mydir<br>/home/mydir<br>DOL_DATA_ROOT/ecm/ecmdir
+FollowingSubstitutionKeysCanBeUsed=By adding such tags into template, you will get a substitution with personalized value when generating document: 
+FullListOnOnlineDocumentation=Full list of all available tags can be found on user documentation of module on wiki http://wiki.dolibarr.org
 FirstnameNamePosition=Position of firstname/name
 DescWeather=The following pictures will be shown on dashboard when number of late actions reach the following values:
 KeyForWebServicesAccess=Key to use Web Services (parameter "dolibarrkey" in webservices)