diff --git a/src/trekstor.rs b/src/trekstor.rs
index 02d9b53..3bb8029 100644
--- a/src/trekstor.rs
+++ b/src/trekstor.rs
@@ -39,7 +39,6 @@ impl Trekstor {
         loop {
             self.input.handle_event();
             self.current_time = Instant::now();
-            let dt = self.current_time - self.last_time;
 
             println!("Frame");
 
@@ -50,16 +49,11 @@ impl Trekstor {
             self.screen.flush();
             self.input.finish();
 
-            let wait_time = if dt > self.update_timestep {
-                dt - self.update_timestep
-            } else {
-                self.update_timestep
-            };
-
-            dbg!(wait_time, dt, self.update_timestep);
-
+            let dt = self.current_time - self.last_time;
             self.last_time = self.current_time;
-            sleep(wait_time);
+            if dt < self.update_timestep {
+                sleep(self.update_timestep - dt);
+            }
         }
     }
 }