diff --git a/infolog/inc/class.infolog_ui.inc.php b/infolog/inc/class.infolog_ui.inc.php
index 40e39e0815..a56897db7c 100644
--- a/infolog/inc/class.infolog_ui.inc.php
+++ b/infolog/inc/class.infolog_ui.inc.php
@@ -1680,7 +1680,15 @@ class infolog_ui
 							}
 							$content['info_link_id'] = (int)($info_link_id = egw_link::link('infolog',$content['link_to']['to_id'],$app,$id));
 						}
-						if ($old_link_id && $old_link_id != $content['info_link_id']) egw_link::unlink($old_link_id);
+						if ($old_link_id && $old_link_id != $content['info_link_id'])
+						{
+							$link = egw_link::get_link($old_link_id);
+							// Keep projectmanager link if it's the same project as before
+							if(!($link['link_app2'] == 'projectmanager' && $link['link_id2'] == $content['old_pm_id']))
+							{
+								egw_link::unlink($old_link_id);
+							}
+						}
 					}
 					if (is_array($content['link_to']['to_id']) && count($content['link_to']['to_id']))
 					{