diff --git a/Userland/Libraries/LibGUI/GlyphMapWidget.cpp b/Userland/Libraries/LibGUI/GlyphMapWidget.cpp
index 6ddc8319d2..eff4612537 100644
--- a/Userland/Libraries/LibGUI/GlyphMapWidget.cpp
+++ b/Userland/Libraries/LibGUI/GlyphMapWidget.cpp
@@ -498,4 +498,12 @@ ErrorOr<void> GlyphMapWidget::set_font(Gfx::Font const& font)
     return {};
 }
 
+Optional<UISize> GlyphMapWidget::calculated_min_size() const
+{
+    auto scrollbar = vertical_scrollbar().effective_min_size().height().as_int();
+    auto min_height = max(font().glyph_height() + m_vertical_spacing, scrollbar);
+    auto min_width = font().max_glyph_width() + m_horizontal_spacing + width_occupied_by_vertical_scrollbar();
+    return { { min_width + frame_thickness() * 2, min_height + frame_thickness() * 2 } };
+}
+
 }
diff --git a/Userland/Libraries/LibGUI/GlyphMapWidget.h b/Userland/Libraries/LibGUI/GlyphMapWidget.h
index acc0c7a19a..ffd312527c 100644
--- a/Userland/Libraries/LibGUI/GlyphMapWidget.h
+++ b/Userland/Libraries/LibGUI/GlyphMapWidget.h
@@ -88,6 +88,7 @@ private:
     virtual void resize_event(ResizeEvent&) override;
     virtual void did_change_font() override;
     virtual void context_menu_event(ContextMenuEvent&) override;
+    virtual Optional<UISize> calculated_min_size() const override;
 
     Gfx::IntRect get_outer_rect(int glyph) const;
     Optional<int> glyph_at_position(Gfx::IntPoint) const;