diff --git a/src/gfx.cpp b/src/gfx.cpp
index 6f165ab013..5f398b6d12 100644
--- a/src/gfx.cpp
+++ b/src/gfx.cpp
@@ -2192,6 +2192,8 @@ void UpdateGUIZoom()
 	} else {
 		_font_zoom = static_cast<ZoomLevel>(_font_zoom_cfg);
 	}
+
+	UpdateFontHeightCache();
 }
 
 void ChangeGameSpeed(bool enable_fast_forward)