diff --git a/src/main.rs b/src/main.rs
index 0384217..99535cb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -145,7 +145,7 @@ fn rainbow(layout: Layout, frame: u32) -> RgbImage {
 
     RgbImage::from_fn(w, h, |x, y| {
         let RGB { r, g, b } =
-            HSV::from_f32((x + y + frame) as f32 / 100.0 % 1.0, 1.0, 0.1).to_rgb();
+            HSV::from_f32((x + y + frame % 100) as f32 / 100.0 % 1.0, 1.0, 0.1).to_rgb();
         Rgb([(r * 255.0) as u8, (g * 255.0) as u8, (b * 255.0) as u8])
     })
 }