diff --git a/kitty/fonts/render.py b/kitty/fonts/render.py
index 763f65e75..cee46aa99 100644
--- a/kitty/fonts/render.py
+++ b/kitty/fonts/render.py
@@ -399,7 +399,7 @@ def prerender_function(
         render_cursor, cursor_beam_thickness=cursor_beam_thickness,
         cursor_underline_thickness=cursor_underline_thickness, cell_width=cell_width,
         cell_height=cell_height, dpi_x=dpi_x, dpi_y=dpi_y)
-    cells = f(1), f(2), f(3), f(4), f(5), f(0, True), f(missing=True), c(1), c(2), c(3)
+    cells = f(1), f(2), f(3), f(4), f(5), f(0, strikethrough=True), f(missing=True), c(1), c(2), c(3)
     return tuple(map(ctypes.addressof, cells)), cells
 
 
diff --git a/kitty_tests/fonts.py b/kitty_tests/fonts.py
index d841f0687..613de3e24 100644
--- a/kitty_tests/fonts.py
+++ b/kitty_tests/fonts.py
@@ -44,15 +44,15 @@ class Rendering(BaseTest):
         sprite_map_set_limits(10, 2)
         sprite_map_set_layout(5, 5)
         self.ae(test_sprite_position_for(0), (0, 0, 0))
-        self.ae(test_sprite_position_for(0), (0, 0, 0))
         self.ae(test_sprite_position_for(1), (1, 0, 0))
         self.ae(test_sprite_position_for(2), (0, 1, 0))
         self.ae(test_sprite_position_for(3), (1, 1, 0))
         self.ae(test_sprite_position_for(4), (0, 0, 1))
         self.ae(test_sprite_position_for(5), (1, 0, 1))
-        self.ae(test_sprite_position_for(0, 1), (0, 1, 1))
-        self.ae(test_sprite_position_for(0, 2), (1, 1, 1))
-        self.ae(test_sprite_position_for(0, 2), (1, 1, 1))
+        self.ae(test_sprite_position_for(6), (0, 1, 1))
+        self.ae(test_sprite_position_for(7), (1, 1, 1))
+        self.ae(test_sprite_position_for(0, 1), (0, 0, 2))
+        self.ae(test_sprite_position_for(0, 2), (1, 0, 2))
 
     def test_box_drawing(self):
         prerendered = len(self.sprites)