diff --git a/src/font/sprite/underline.zig b/src/font/sprite/underline.zig
index 55a29d80c..163a8fb78 100644
--- a/src/font/sprite/underline.zig
+++ b/src/font/sprite/underline.zig
@@ -80,7 +80,7 @@ const Draw = struct {
         // Ensure we never overflow out of bounds on the canvas
         const y_max = self.height -| 1;
         const bottom = @min(self.pos + self.thickness, y_max);
-        const y = @as(i32, @intCast(bottom - self.thickness));
+        const y = @as(i32, @intCast(bottom)) - @as(i32, @intCast(self.thickness));
 
         canvas.rect(.{
             .x = 0,