diff --git a/src/slic3r/GUI/SyncAmsInfoDialog.cpp b/src/slic3r/GUI/SyncAmsInfoDialog.cpp
index 85a85bf3b..df2753a11 100644
--- a/src/slic3r/GUI/SyncAmsInfoDialog.cpp
+++ b/src/slic3r/GUI/SyncAmsInfoDialog.cpp
@@ -316,6 +316,7 @@ bool SyncAmsInfoDialog::is_dirty_filament() {
 bool SyncAmsInfoDialog::is_need_show()
 {
     m_result.direct_sync = true;//init
+    m_generate_fix_sizer_ams_mapping = false;//init
     if (!m_input_info.connected_printer) {
         return true;
     }