diff --git a/src/example1.cpp b/src/example1.cpp
index 54bffdf814..1a33326d0f 100644
--- a/src/example1.cpp
+++ b/src/example1.cpp
@@ -178,10 +178,10 @@ class ExampleApplication : public nanogui::Screen {
         tools->setLayout(new BoxLayout(Orientation::Horizontal,
                                        Alignment::Middle, 0, 6));
 
-        b = new ToolButton(tools, ENTYPO_ICON_CLOUD);
-        b = new ToolButton(tools, ENTYPO_ICON_FF);
-        b = new ToolButton(tools, ENTYPO_ICON_COMPASS);
-        b = new ToolButton(tools, ENTYPO_ICON_INSTALL);
+        new ToolButton(tools, ENTYPO_ICON_CLOUD);
+        new ToolButton(tools, ENTYPO_ICON_FF);
+        new ToolButton(tools, ENTYPO_ICON_COMPASS);
+        new ToolButton(tools, ENTYPO_ICON_INSTALL);
 
         new Label(window, "Popup buttons", "sans-bold");
         PopupButton *popupBtn = new PopupButton(window, "Popup", ENTYPO_ICON_EXPORT);