diff --git a/src/components/map/mapbox/feature/FeatureAirZone.js b/src/components/map/mapbox/feature/FeatureAirZone.js
index 0164bb1..2737041 100644
--- a/src/components/map/mapbox/feature/FeatureAirZone.js
+++ b/src/components/map/mapbox/feature/FeatureAirZone.js
@@ -361,7 +361,7 @@ export const FeatureAirZone = props => {
         const bufferList = await axios.post(
           `http://211.253.11.189:8080/api/bas/flight/adex/buffer`,
           {
-            buffer: 50,
+            buffer: 31,
             coordinates: coords
           }
         );