diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 066f97c142d26ed662d45aeb157c4b5a6b05b7da..1f2a9d1d8d94f7644e99c6cecd73b83de06ff61c 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -5079,7 +5079,7 @@ function complete_head_from_modules($conf,$langs,$object,&$head,&$h,$type,$mode=
 						if (preg_match('/SUBSTITUTION_([^_]+)/i',$values[2],$reg))
 						{
 							$substitutionarray=array();
-							complete_substitutions_array($substitutionarray,$langs,$object);
+							complete_substitutions_array($substitutionarray,$langs,$object,array('needforkey'=>$values[2]));
 							$label=make_substitutions($reg[1], $substitutionarray);
 						}
 						else $label=$langs->trans($values[2]);
@@ -5099,7 +5099,7 @@ function complete_head_from_modules($conf,$langs,$object,&$head,&$h,$type,$mode=
 					if (preg_match('/SUBSTITUTION_([^_]+)/i',$values[2],$reg))
 					{
 						$substitutionarray=array();
-						complete_substitutions_array($substitutionarray,$langs,$object);
+						complete_substitutions_array($substitutionarray,$langs,$object,array('needforkey'=>$values[2]));
 						$label=make_substitutions($reg[1], $substitutionarray);
 					}
 					else $label=$langs->trans($values[2]);