diff --git a/src/trekstor.rs b/src/trekstor.rs
index fb20e46..d7a83a2 100644
--- a/src/trekstor.rs
+++ b/src/trekstor.rs
@@ -51,8 +51,8 @@ impl Trekstor {
             self.screen.flush();
             self.input.finish();
 
-            let wait_time = if dt < self.update_timestep {
-                dt - self.update_timestep
+            let wait_time = if dt > self.update_timestep {
+                self.update_timestep - dt
             } else {
                 Duration::from_millis(33)
             };