diff --git a/src/c3nav/mapdata/utils/mesh.py b/src/c3nav/mapdata/utils/mesh.py
index 43bbc71c..cd48f58c 100644
--- a/src/c3nav/mapdata/utils/mesh.py
+++ b/src/c3nav/mapdata/utils/mesh.py
@@ -36,7 +36,7 @@ def _triangulate_polygon(polygon: Polygon, keep_holes=False):
         if holes.size:
             info.set_holes(holes.reshape((holes.shape[0], -1)))
 
-    mesh = triangle.build(info)
+    mesh = triangle.build(info, quality_meshing=False)
     return np.array(mesh.points), np.array(mesh.elements)