diff --git a/xs/src/libslic3r/MedialAxis.cpp b/xs/src/libslic3r/MedialAxis.cpp
index 2074a87d6..18242b8ab 100644
--- a/xs/src/libslic3r/MedialAxis.cpp
+++ b/xs/src/libslic3r/MedialAxis.cpp
@@ -1325,7 +1325,8 @@ MedialAxis::simplify_polygon_frontier()
         }
     }
 
-    simplified_poly.remove_point_too_near(SCALED_RESOLUTION);
+    if (!simplified_poly.contour.points.empty())
+        simplified_poly.remove_point_too_near(SCALED_RESOLUTION);
     return simplified_poly;
 }