diff --git a/selfdrive/sensord/sensors_qcom2.cc b/selfdrive/sensord/sensors_qcom2.cc
index 2279cf2532..fc8dc8620b 100644
--- a/selfdrive/sensord/sensors_qcom2.cc
+++ b/selfdrive/sensord/sensors_qcom2.cc
@@ -27,7 +27,6 @@
 #define I2C_BUS_IMU 1
 
 ExitHandler do_exit;
-std::mutex pm_mutex;
 uint64_t init_ts = 0;
 
 void interrupt_loop(std::vector<Sensor *>& sensors,