diff --git a/Userland/Applications/FontEditor/FontEditor.cpp b/Userland/Applications/FontEditor/FontEditor.cpp
index cb1f712dfb..5887d93199 100644
--- a/Userland/Applications/FontEditor/FontEditor.cpp
+++ b/Userland/Applications/FontEditor/FontEditor.cpp
@@ -288,6 +288,7 @@ FontEditorWidget::FontEditorWidget(const String& path, RefPtr<Gfx::BitmapFont>&&
 
     m_type_combobox->on_change = [this](auto&, const auto& index) {
         m_edited_font->set_type(static_cast<Gfx::FontTypes>(index.row()));
+        m_glyph_map_widget->reprobe_font();
     };
 
     m_presentation_spinbox->on_change = [this, update_demo](int value) {
diff --git a/Userland/Applications/FontEditor/GlyphMapWidget.cpp b/Userland/Applications/FontEditor/GlyphMapWidget.cpp
index b115472718..c03302f93e 100644
--- a/Userland/Applications/FontEditor/GlyphMapWidget.cpp
+++ b/Userland/Applications/FontEditor/GlyphMapWidget.cpp
@@ -90,6 +90,14 @@ void GlyphMapWidget::update_glyph(int glyph)
     update(get_outer_rect(glyph));
 }
 
+void GlyphMapWidget::reprobe_font()
+{
+    VERIFY(m_font);
+    m_glyph_count = m_font->glyph_count();
+    m_selected_glyph = 0;
+    update();
+}
+
 void GlyphMapWidget::paint_event(GUI::PaintEvent& event)
 {
     GUI::Frame::paint_event(event);
diff --git a/Userland/Applications/FontEditor/GlyphMapWidget.h b/Userland/Applications/FontEditor/GlyphMapWidget.h
index 3c6a683c32..1fb2ccc5d3 100644
--- a/Userland/Applications/FontEditor/GlyphMapWidget.h
+++ b/Userland/Applications/FontEditor/GlyphMapWidget.h
@@ -47,6 +47,7 @@ public:
     const Gfx::BitmapFont& font() const { return *m_font; }
 
     void update_glyph(int);
+    void reprobe_font();
 
     Function<void(int)> on_glyph_selected;