diff --git a/geometry/jarvis_algorithm.cpp b/geometry/jarvis_algorithm.cpp
index 9a1b4ea8d..c0e906886 100644
--- a/geometry/jarvis_algorithm.cpp
+++ b/geometry/jarvis_algorithm.cpp
@@ -145,6 +145,7 @@ namespace geometry {
 
 /**
  * Test function
+ * @returns void
  */
 static void test() {
     std::vector<geometry::Point> points = {{0, 3},