diff --git a/src/gui/text/qharfbuzzng.cpp b/src/gui/text/qharfbuzzng.cpp
index 21f880e7be..2f25aea92b 100644
--- a/src/gui/text/qharfbuzzng.cpp
+++ b/src/gui/text/qharfbuzzng.cpp
@@ -689,6 +689,8 @@ _hb_qt_font_create(QFontEngine *fe)
     hb_font_set_scale(font, QFixed(x_ppem).value(), -QFixed(y_ppem).value());
     hb_font_set_ppem(font, x_ppem, y_ppem);
 
+    hb_font_set_ptem(font, fe->fontDef.pointSize);
+
     return font;
 }