diff --git a/conanfile.py b/conanfile.py
index 6c0fe885b4..251083b01f 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -152,6 +152,7 @@ def generate(self):
                 folder_dists.append("tests")
             if self.options.enable_benchmarks:
                 folder_dists.append("benchmark")
+                folder_dists.append("stress_benchmark")
 
             for dist_folder in folder_dists:
                 dist_path = path.join(self.build_folder, dist_folder)
diff --git a/include/utils/polygon.h b/include/utils/polygon.h
index 86f9a7aa22..e83c2a9275 100644
--- a/include/utils/polygon.h
+++ b/include/utils/polygon.h
@@ -1552,7 +1552,10 @@ class PolygonsPart : public Polygons
     }
     ConstPolygonRef outerPolygon() const
     {
-        return paths[0];
+        if (! paths.empty())
+        {
+            return paths[0];
+        }
     }
 
     /*!