diff --git a/autoware_utils_geometry/src/geometry/boost_polygon_utils.cpp b/autoware_utils_geometry/src/geometry/boost_polygon_utils.cpp
index ed5aa73..4a53799 100644
--- a/autoware_utils_geometry/src/geometry/boost_polygon_utils.cpp
+++ b/autoware_utils_geometry/src/geometry/boost_polygon_utils.cpp
@@ -73,8 +73,8 @@ namespace autoware_utils_geometry
 bool is_clockwise(const Polygon2d & polygon)
 {
   const int n = polygon.outer().size();
-  const double x_offset = polygon.outer().at(0).x();
-  const double y_offset = polygon.outer().at(0).y();
+  const double x_offset = n > 0 ? polygon.outer().at(0).x() : 0.0;
+  const double y_offset = n > 0 ? polygon.outer().at(0).y() : 0.0;
   double sum = 0.0;
   for (std::size_t i = 0; i < polygon.outer().size(); ++i) {
     sum +=
diff --git a/autoware_utils_geometry/test/cases/boost_polygon_utils.cpp b/autoware_utils_geometry/test/cases/boost_polygon_utils.cpp
index e9b6279..37f8017 100644
--- a/autoware_utils_geometry/test/cases/boost_polygon_utils.cpp
+++ b/autoware_utils_geometry/test/cases/boost_polygon_utils.cpp
@@ -53,7 +53,7 @@ TEST(boost_geometry, boost_is_clockwise)
 
   // empty
   Polygon2d empty_polygon;
-  EXPECT_THROW(is_clockwise(empty_polygon), std::out_of_range);
+  EXPECT_FALSE(is_clockwise(empty_polygon));
 
   // normal case
   Polygon2d clock_wise_polygon{{{0.0, 0.0}, {0.0, 1.0}, {1.0, 1.0}, {1.0, 0.0}, {0.0, 0.0}}};