diff --git a/selfdrive/sensord/sensors.cc b/selfdrive/sensord/sensors.cc
index 952a4863c2..5e8741dbb3 100644
--- a/selfdrive/sensord/sensors.cc
+++ b/selfdrive/sensord/sensors.cc
@@ -225,7 +225,7 @@ void sensor_loop() {
         break;
       }
     }
-
+    sensors_close(device);
     delete sensor_events_sock;
     delete c;
   }
diff --git a/selfdrive/ui/ui.cc b/selfdrive/ui/ui.cc
index a5a12de689..f175d7092d 100644
--- a/selfdrive/ui/ui.cc
+++ b/selfdrive/ui/ui.cc
@@ -911,7 +911,7 @@ static void* light_sensor_thread(void *args) {
       s->light_sensor = buffer[0].light;
     }
   }
-
+  sensors_close(device);
   return NULL;
 
 fail: