diff --git a/kitty/glfw.c b/kitty/glfw.c
index 16f900022..a51b0592f 100644
--- a/kitty/glfw.c
+++ b/kitty/glfw.c
@@ -693,7 +693,7 @@ create_os_window(PyObject UNUSED *self, PyObject *args) {
         if (n_xdpi != xdpi || n_ydpi != ydpi) {
             // this can happen if the window is moved by the OS to a different monitor when shown
             xdpi = n_xdpi; ydpi = n_ydpi;
-            fonts_data = load_fonts_data(global_state.font_sz_in_pts, xdpi, ydpi);
+            fonts_data = load_fonts_data(OPT(font_size), xdpi, ydpi);
         }
 #endif
     }