diff --git a/htdocs/langs/en_US/projects.lang b/htdocs/langs/en_US/projects.lang
index 8b380645f73..31639d0b6b1 100644
--- a/htdocs/langs/en_US/projects.lang
+++ b/htdocs/langs/en_US/projects.lang
@@ -207,3 +207,4 @@ OppStatusPENDING=Pending
 OppStatusWON=Won
 OppStatusLOST=Lost
 Budget=Budget
+AllowToLinkFromOtherCompany=Allow to link project from other company<br /><br /><u>Supported values :</u><br />- "all" : Link all projects<br />- A list of thirdparty id separated with commas : Link all projects with these thirdparty defined<br />Example : 11524,4795,53<br /><br />N.B.: Leave empty to disable this configuration
diff --git a/htdocs/projet/admin/project.php b/htdocs/projet/admin/project.php
index 744e52e0f2f..92646bab75a 100644
--- a/htdocs/projet/admin/project.php
+++ b/htdocs/projet/admin/project.php
@@ -274,6 +274,12 @@ elseif ($action == 'updateoptions')
 		}
 	}
 }
+else if ($action == "linkOtherCompany")
+{
+	$projectToSelect = GETPOST('projectToSelect');
+	
+	dolibarr_set_const($db, 'PROJECT_ALLOW_TO_LINK_FROM_OTHER_COMPANY', $projectToSelect, 'chaine', 0, '', $conf->entity);	//Allow to disable this configuration if empty value
+}
 
 
 /*
@@ -912,16 +918,20 @@ print '</tr>';
 print '<tr class="oddeven">';
 print '<td>'.$langs->trans("AllowToSelectProjectFromOtherCompany").'</td>';
 
-print '<td align="center" width="300">';
-echo ajax_constantonoff('PROJECT_ALLOW_TO_LINK_FROM_OTHER_COMPANY');
+print '<td align="right" width="60" colspan="2">';
+
+print '<form action="project.php" method="POST">';
+print '<input type="hidden" id="action" name="action" value="linkOtherCompany" />';
+print '<input type="text" id="projectToSelect" name="projectToSelect" value="'.$conf->global->PROJECT_ALLOW_TO_LINK_FROM_OTHER_COMPANY.'"/>&nbsp;';
+print $form->textwithpicto('', $langs->trans('AllowToLinkFromOtherCompany'));
+print '<input type="submit" class="button" name="PROJECT_ALLOW_TO_LINK_FROM_OTHER_COMPANY" value="'.$langs->trans("Modify").'">';
+print '</form>';
 print '</td>';
-print '<td align="center" width="20">&nbsp;</td>';
 print '</tr>';
 
 print '</table></form>';
 
 
 
-
 llxFooter();
 $db->close();