diff --git a/controller/python/check-firmware.py b/controller/python/check-firmware.py
index f2840cd85618bae2d32ef3aecd3d5cd95a70b9f2..ff0ba1f67b3d111b95ea6c435a288dc17e158bbf 100644
--- a/controller/python/check-firmware.py
+++ b/controller/python/check-firmware.py
@@ -62,7 +62,7 @@ def check_firmware():
     time.sleep(1.5)  # Let some time to stop
     (left, right) = c.get_encoder_ticks()
     assert left > 0 and right < 0
-    print("- Check that a negative P coefficient reverse the direction")
+    print("- Check that a negative P coefficient reverses the direction")
     c.set_pid_coefficients(-1, 0, 0)
     c.set_motor_speed(30, -30)
     time.sleep(1.5)  # Let some time to stop
diff --git a/tele0592/examples/check-firmware.rs b/tele0592/examples/check-firmware.rs
index b03b7d9c3996975e0dbfc37b5796077fb3d3dbc0..0f2d0a6bc74805fe52770533491ffb65de1df6e4 100644
--- a/tele0592/examples/check-firmware.rs
+++ b/tele0592/examples/check-firmware.rs
@@ -188,7 +188,7 @@ fn main() -> color_eyre::Result<()> {
     let (left, right) = c.get_encoder_ticks()?;
     assert!(left > 0 && right < 0);
 
-    println!("- Check that a negative P coefficient reverse the direction");
+    println!("- Check that a negative P coefficient reverses the direction");
     c.set_shared_pid_coefficients(-1.0, 0.0, 0.0)?;
     c.set_motor_speed(30, -30)?;
     thread::sleep(Duration::from_millis(1500)); // Let some time to stop