diff --git a/include/boost/geometry/extensions/index/static_vector.hpp b/include/boost/geometry/extensions/index/static_vector.hpp
index 469794e7e..2721fd684 100644
--- a/include/boost/geometry/extensions/index/static_vector.hpp
+++ b/include/boost/geometry/extensions/index/static_vector.hpp
@@ -152,7 +152,7 @@ public:
     }
 
     // nothrow
-    void reserve(size_type BOOST_GEOMETRY_INDEX_ASSERT_UNUSED_PARAM(count))
+    void reserve(size_type count)
     {
         check_capacity(count);
     }