diff --git a/htdocs/api/admin/index.php b/htdocs/api/admin/index.php
index b4ebb6cb30e..1d15d5b9e75 100644
--- a/htdocs/api/admin/index.php
+++ b/htdocs/api/admin/index.php
@@ -160,7 +160,8 @@ if (dol_is_dir(DOL_DOCUMENT_ROOT.'/includes/restler/framework/Luracast/Restler/e
 	$url = DOL_MAIN_URL_ROOT.'/api/index.php/explorer';
 	print img_picto('', 'globe').' <a href="'.$url.'" target="_blank">'.$url."</a><br>\n";
 } else {
-	print $langs->trans("NotAvailableWithThisDistribution");
+	$langs->load("errors");
+	print info_admin($langs->trans("ErrorNotAvailableWithThisDistribution"), 0, 0, 'error');
 }
 
 llxFooter();
diff --git a/htdocs/langs/en_US/errors.lang b/htdocs/langs/en_US/errors.lang
index 2413e6d76ba..056c9240bd0 100644
--- a/htdocs/langs/en_US/errors.lang
+++ b/htdocs/langs/en_US/errors.lang
@@ -250,6 +250,7 @@ ErrorParameterMustBeEnabledToAllwoThisFeature=Error, parameter <b>%s</b> must be
 ErrorLoginDateValidity=Error, this login is outside the validity date range
 ErrorValueLength=Length of field '<b>%s</b>' must be higher than '<b>%s</b>'
 ErrorReservedKeyword=The word '<b>%s</b>' is a reserved keyword
+ErrorNotAvailableWithThisDistribution=Not available with this distribution
 # Warnings
 WarningParamUploadMaxFileSizeHigherThanPostMaxSize=Your PHP parameter upload_max_filesize (%s) is higher than PHP parameter post_max_size (%s). This is not a consistent setup.
 WarningPasswordSetWithNoAccount=A password was set for this member. However, no user account was created. So this password is stored but can't be used to login to Dolibarr. It may be used by an external module/interface but if you don't need to define any login nor password for a member, you can disable option "Manage a login for each member" from Member module setup. If you need to manage a login but don't need any password, you can keep this field empty to avoid this warning. Note: Email can also be used as a login if the member is linked to a user.