diff --git a/eeschema/eeschema_config.cpp b/eeschema/eeschema_config.cpp
index ecdcea32dc..6bd7538722 100644
--- a/eeschema/eeschema_config.cpp
+++ b/eeschema/eeschema_config.cpp
@@ -79,6 +79,15 @@ bool SCH_EDIT_FRAME::LoadProjectSettings()
 
 void SCH_EDIT_FRAME::ShowSchematicSetupDialog( const wxString& aInitialPage )
 {
+    SCH_SCREENS screens( Schematic().Root() );
+    std::vector<std::shared_ptr<BUS_ALIAS>> oldAliases;
+
+    for( SCH_SCREEN* screen = screens.GetFirst(); screen != nullptr; screen = screens.GetNext() )
+    {
+        for( const std::shared_ptr<BUS_ALIAS>& alias : screen->GetBusAliases() )
+            oldAliases.push_back( alias );
+    }
+
     DIALOG_SCHEMATIC_SETUP dlg( this );
 
     if( !aInitialPage.IsEmpty() )
@@ -104,6 +113,18 @@ void SCH_EDIT_FRAME::ShowSchematicSetupDialog( const wxString& aInitialPage )
 
         GetCanvas()->GetView()->MarkDirty();
         GetCanvas()->GetView()->UpdateAllItems( KIGFX::REPAINT );
+
+        std::vector<std::shared_ptr<BUS_ALIAS>> newAliases;
+
+        for( SCH_SCREEN* screen = screens.GetFirst(); screen != nullptr; screen = screens.GetNext() )
+        {
+            for( const std::shared_ptr<BUS_ALIAS>& alias : screen->GetBusAliases() )
+                newAliases.push_back( alias );
+        }
+
+        if( oldAliases != newAliases )
+            RecalculateConnections( nullptr, GLOBAL_CLEANUP );
+
         RefreshOperatingPointDisplay();
         GetCanvas()->Refresh();
     }