diff --git a/Userland/Libraries/LibGUI/Widget.cpp b/Userland/Libraries/LibGUI/Widget.cpp
index e201fb7f3b..3dba85bd23 100644
--- a/Userland/Libraries/LibGUI/Widget.cpp
+++ b/Userland/Libraries/LibGUI/Widget.cpp
@@ -983,9 +983,9 @@ Gfx::IntRect Widget::content_rect() const
     return rect;
 }
 
-void Widget::set_tooltip(const StringView& tooltip)
+void Widget::set_tooltip(String tooltip)
 {
-    m_tooltip = tooltip;
+    m_tooltip = move(tooltip);
     if (Application::the()->tooltip_source_widget() == this)
         show_or_hide_tooltip();
 }
diff --git a/Userland/Libraries/LibGUI/Widget.h b/Userland/Libraries/LibGUI/Widget.h
index 45a2411fd2..8cb070cc7d 100644
--- a/Userland/Libraries/LibGUI/Widget.h
+++ b/Userland/Libraries/LibGUI/Widget.h
@@ -140,7 +140,7 @@ public:
 
     bool has_tooltip() const { return !m_tooltip.is_empty(); }
     String tooltip() const { return m_tooltip; }
-    void set_tooltip(const StringView&);
+    void set_tooltip(String);
 
     bool is_enabled() const { return m_enabled; }
     void set_enabled(bool);