diff --git a/src/components/Map/MapViewer/MapViewerVector/utils/shapes/coords/getPolygonCoords.ts b/src/components/Map/MapViewer/MapViewerVector/utils/shapes/coords/getPolygonCoords.ts
index 9f68ed47511d946efe7f178e3c7b152c1ea3494d..d00816b5a3ef7b85e622b32722208a57093db6fb 100644
--- a/src/components/Map/MapViewer/MapViewerVector/utils/shapes/coords/getPolygonCoords.ts
+++ b/src/components/Map/MapViewer/MapViewerVector/utils/shapes/coords/getPolygonCoords.ts
@@ -47,6 +47,10 @@ export default function getPolygonCoords({
     const { p1, p2, p3 } = getCurveCoords({ x, y, point, height, width, pointToProjection });
     const p0 = lastPoint;
     lastPoint = p3;
-    return getBezierCurve({ p0, p1, p2, p3, numPoints: 3 });
+    let numPoints = 3;
+    if (p0[0] === p3[0] || p0[1] === p3[1]) {
+      numPoints = 9;
+    }
+    return getBezierCurve({ p0, p1, p2, p3, numPoints });
   });
 }