diff --git a/src/slic3r/GUI/GUI.cpp b/src/slic3r/GUI/GUI.cpp
index 0f9af3ccb..3ed8a7021 100644
--- a/src/slic3r/GUI/GUI.cpp
+++ b/src/slic3r/GUI/GUI.cpp
@@ -217,7 +217,7 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
 			}
 			break;
         case coPoints:{
-			if (opt_key == "bed_shape" || opt_key == "thumbnails") {
+			if (opt_key == "bed_shape") {
 				config.option<ConfigOptionPoints>(opt_key)->values = boost::any_cast<std::vector<Vec2d>>(value);
 				break;
 			}