diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index b8cc0c738f..c3b2e1e786 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -4855,6 +4855,11 @@ template<typename T> void setup_dialog_position(T& info)
 
 void Sidebar::pop_sync_nozzle_and_ams_dialog() {
     BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " begin pop_sync_nozzle_and_ams_dialog";
+    auto agent = wxGetApp().getAgent();
+    if (!agent || agent->get_filament_sync_mode() == FilamentSyncMode::none) {
+        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " filament synchronization is not supported; skipping dialog";
+        return;
+    }
     wxTheApp->CallAfter([this]() {
         SyncNozzleAndAmsDialog::InputInfo temp_na_info;
         wxPoint                           big_btn_pt;