diff --git a/src/trekstor.rs b/src/trekstor.rs
index 3bb8029..473fe56 100644
--- a/src/trekstor.rs
+++ b/src/trekstor.rs
@@ -36,11 +36,15 @@ impl Trekstor {
     }
 
     pub fn update(&mut self, update: UpdateFn) {
+        let mut last_frame_time = Instant::now();
         loop {
             self.input.handle_event();
             self.current_time = Instant::now();
 
-            println!("Frame");
+            println!(
+                "FPS: {}",
+                (self.current_time - last_frame_time).as_secs_f64()
+            );
 
             if !update(&mut self.screen, &self.input) {
                 return;
@@ -54,6 +58,7 @@ impl Trekstor {
             if dt < self.update_timestep {
                 sleep(self.update_timestep - dt);
             }
+            last_frame_time = Instant::now();
         }
     }
 }