diff --git a/Libraries/LibGfx/TextLayout.cpp b/Libraries/LibGfx/TextLayout.cpp
index 0b49f8b4c16..26e4587d718 100644
--- a/Libraries/LibGfx/TextLayout.cpp
+++ b/Libraries/LibGfx/TextLayout.cpp
@@ -52,7 +52,7 @@ Vector<NonnullRefPtr<GlyphRun>> shape_text(FloatPoint baseline_start, Utf8View s
     return runs;
 }
 
-RefPtr<GlyphRun> shape_text(FloatPoint baseline_start, float letter_spacing, Utf8View string, Gfx::Font const& font, GlyphRun::TextType text_type, ShapeFeatures const& features)
+NonnullRefPtr<GlyphRun> shape_text(FloatPoint baseline_start, float letter_spacing, Utf8View string, Gfx::Font const& font, GlyphRun::TextType text_type, ShapeFeatures const& features)
 {
     static hb_buffer_t* buffer = hb_buffer_create();
     hb_buffer_add_utf8(buffer, reinterpret_cast<char const*>(string.bytes()), string.byte_length(), 0, -1);
diff --git a/Libraries/LibGfx/TextLayout.h b/Libraries/LibGfx/TextLayout.h
index 0cf8e7818f9..5239d7e65a8 100644
--- a/Libraries/LibGfx/TextLayout.h
+++ b/Libraries/LibGfx/TextLayout.h
@@ -70,7 +70,7 @@ private:
     float m_width { 0 };
 };
 
-RefPtr<GlyphRun> shape_text(FloatPoint baseline_start, float letter_spacing, Utf8View string, Gfx::Font const& font, GlyphRun::TextType, ShapeFeatures const& features);
+NonnullRefPtr<GlyphRun> shape_text(FloatPoint baseline_start, float letter_spacing, Utf8View string, Gfx::Font const& font, GlyphRun::TextType, ShapeFeatures const& features);
 Vector<NonnullRefPtr<GlyphRun>> shape_text(FloatPoint baseline_start, Utf8View string, FontCascadeList const&);
 float measure_text_width(Utf8View const& string, Gfx::Font const& font, ShapeFeatures const& features);