diff --git a/src/slic3r/GUI/Widgets/Button.cpp b/src/slic3r/GUI/Widgets/Button.cpp
index 8c9d6f7fe..ed956b509 100644
--- a/src/slic3r/GUI/Widgets/Button.cpp
+++ b/src/slic3r/GUI/Widgets/Button.cpp
@@ -79,7 +79,7 @@ void Button::SetIcon(const wxString& icon)
     auto tmpBitmap = ScalableBitmap(this, icon.ToStdString(), this->active_icon.px_cnt());
     if (!icon.IsEmpty()) {
         //BBS set button icon default size to 20
-        if (!tmpBitmap.bmp().IsSameAs(tmpBitmap.bmp())) { 
+        if (!tmpBitmap.bmp().IsSameAs(this->active_icon.bmp())) { 
             this->active_icon = tmpBitmap;
             Refresh();
         }