diff --git a/Userland/Libraries/LibGUI/ComboBox.cpp b/Userland/Libraries/LibGUI/ComboBox.cpp
index e759fab601..e46f0be84f 100644
--- a/Userland/Libraries/LibGUI/ComboBox.cpp
+++ b/Userland/Libraries/LibGUI/ComboBox.cpp
@@ -75,6 +75,7 @@ ComboBox::ComboBox()
     };
 
     m_open_button = add<Button>();
+    m_open_button->set_button_style(Gfx::ButtonStyle::ThickCap);
     m_open_button->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/downward-triangle.png"));
     m_open_button->set_focus_policy(GUI::FocusPolicy::NoFocus);
     m_open_button->on_click = [this](auto) {
diff --git a/Userland/Libraries/LibGUI/SpinBox.cpp b/Userland/Libraries/LibGUI/SpinBox.cpp
index 59a5647398..76a314e536 100644
--- a/Userland/Libraries/LibGUI/SpinBox.cpp
+++ b/Userland/Libraries/LibGUI/SpinBox.cpp
@@ -33,11 +33,13 @@ SpinBox::SpinBox()
     };
 
     m_increment_button = add<Button>();
+    m_increment_button->set_button_style(Gfx::ButtonStyle::ThickCap);
     m_increment_button->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/upward-triangle.png"));
     m_increment_button->set_focus_policy(GUI::FocusPolicy::NoFocus);
     m_increment_button->on_click = [this](auto) { set_value(m_value + 1); };
     m_increment_button->set_auto_repeat_interval(150);
     m_decrement_button = add<Button>();
+    m_decrement_button->set_button_style(Gfx::ButtonStyle::ThickCap);
     m_decrement_button->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/downward-triangle.png"));
     m_decrement_button->set_focus_policy(GUI::FocusPolicy::NoFocus);
     m_decrement_button->on_click = [this](auto) { set_value(m_value - 1); };