diff --git a/config/mapper_params_online_async.yaml b/config/mapper_params_online_async.yaml
index d48bfed..d31adcc 100644
--- a/config/mapper_params_online_async.yaml
+++ b/config/mapper_params_online_async.yaml
@@ -27,7 +27,7 @@ slam_toolbox:
     throttle_scans: 1
     transform_publish_period: 0.02 #if 0 never publishes odometry
     map_update_interval: 1.0 #was 5.0
-    resolution: 0.05
+    resolution: 0.02 # 0.05
     max_laser_range: 200.0 #for rastering images, standard was 20
     minimum_time_interval: 0.5
     transform_timeout: 0.2