diff --git a/apps/terminal/signal_handlers.py b/apps/terminal/signal_handlers.py
index d98e21eee..ec7eed45f 100644
--- a/apps/terminal/signal_handlers.py
+++ b/apps/terminal/signal_handlers.py
@@ -45,7 +45,7 @@ def on_applet_create(sender, instance, created=False, **kwargs):
 def init_db_port_mapper(sender, **kwargs):
     logger.info('Init db port mapper')
     try:
-        db_port_manager.init()
+        db_port_manager.check()
     except (ProgrammingError,) as e:
         pass
 
diff --git a/apps/terminal/utils/db_port_mapper.py b/apps/terminal/utils/db_port_mapper.py
index d343dd3cb..4ca8cebec 100644
--- a/apps/terminal/utils/db_port_mapper.py
+++ b/apps/terminal/utils/db_port_mapper.py
@@ -34,9 +34,22 @@ class DBPortManager(object):
     def magnus_listen_port_range(self):
         return settings.MAGNUS_PORTS
 
-    def init(self):
+    @staticmethod
+    def fetch_dbs():
         with tmp_to_root_org():
-            db_ids = Asset.objects.filter(platform__category=Category.DATABASE).values_list('id', flat=True)
+            dbs = Asset.objects.filter(platform__category=Category.DATABASE).order_by('id')
+            return dbs
+
+    def check(self):
+        dbs = self.fetch_dbs()
+        for db in dbs:
+            port = self.get_port_by_db(db, raise_exception=False)
+            if not port:
+                self.add(db)
+
+    def init(self):
+        dbs = self.fetch_dbs()
+        db_ids = dbs.values_list('id', flat=True)
         db_ids = [str(i) for i in db_ids]
         mapper = dict(zip(self.all_available_ports, list(db_ids)))
         self.set_mapper(mapper)