diff --git a/src/main.rs b/src/main.rs
index 2e99db0..e3f1528 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -36,7 +36,7 @@ const TOTAL_GLYPH_ATLASES: u8 = 16 * 8;
 // Total screen blocks = GLYPH_COLUMNS * GLYPH_ROWS
 const TOTAL_SCREEN_BLOCKS: usize = 2000;
 
-const FPS_60_HERTZ: u32 = 1_000_000_000u32 / 60;
+const REFRESH_RATE: u32 = 1_000_000_000u32 / 60;
 const BLINK_RATE: u128 = 266666666;
 
 #[derive(Clone, Copy)]
@@ -257,8 +257,11 @@ pub fn main() {
             blink_tick += elapsed;
         }
 
+        if (elapsed as u32) < REFRESH_RATE {
+            sleep(Duration::new(0, REFRESH_RATE - elapsed as u32));
+        }
+
         render(&mut canvas, &atlases, &dos_screen, &blink_state);
-        //sleep(Duration::new(0, FPS_60_HERTZ));
 
         prev_tick = curr_tick;
     }