diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index ed3ae7f..177f88e 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -15,6 +15,7 @@
 name: Lint
 on:
   push:
+  pull_request:
 concurrency:
   group: ${{ github.head_ref || github.sha }}-${{ github.workflow }}
   cancel-in-progress: true
diff --git a/src/openarm_driver/driver.py b/src/openarm_driver/driver.py
index 6af12b2..7b50f18 100644
--- a/src/openarm_driver/driver.py
+++ b/src/openarm_driver/driver.py
@@ -132,8 +132,13 @@ def set_latest_state(self, timeout_us=300):
         """Update the state."""
         self.openarm.recv_all(timeout_us)
         motor_values = (
-            (m.get_position(), m.get_velocity(), m.get_torque(),
-             m.get_state_tmos(), m.get_state_trotor())
+            (
+                m.get_position(),
+                m.get_velocity(),
+                m.get_torque(),
+                m.get_state_tmos(),
+                m.get_state_trotor(),
+            )
             for m in self._iter_motors()
         )
         qpos, qvel, qtau, tmos, trotor = zip(*motor_values)