diff --git a/include/boost/geometry/extensions/index/static_vector.hpp b/include/boost/geometry/extensions/index/static_vector.hpp
index 5f36514a2..9a9acf3dc 100644
--- a/include/boost/geometry/extensions/index/static_vector.hpp
+++ b/include/boost/geometry/extensions/index/static_vector.hpp
@@ -167,7 +167,7 @@ public:
     {
         // TODO change name of this macro
         BOOST_GEOMETRY_INDEX_ASSERT_UNUSED_PARAM(difference_type dist = std::distance(this->begin(), position));
-        BOOST_ASSERT_MSG(0 <= dist && (sizeof(dist)<=sizeof(m_size)?((size_type)dist<m_size):(dist<(difference_type)m_size)), "invalid iterator");
+        BOOST_ASSERT_MSG(0 <= dist && (sizeof(dist)<=sizeof(m_size)?((size_type)dist<=m_size):(dist<=(difference_type)m_size)), "invalid iterator");
         
         BOOST_ASSERT_MSG(m_size < Capacity, "size can't exceed the capacity");
         //if ( Capacity <= m_size ) throw std::bad_alloc();
diff --git a/test/static_vector.cpp b/test/static_vector.cpp
index c2bdf7d87..7158f39f3 100644
--- a/test/static_vector.cpp
+++ b/test/static_vector.cpp
@@ -363,6 +363,16 @@ void test_insert_nd(T const& v)
         for ( size_t i = 0 ; i < h ; ++i )
             BOOST_CHECK(s1[i+h] == T(i));
     }
+    {
+        static_vector<T, N> s1(s);
+        for ( size_t i = 0 ; i < h ; ++i )
+            s1.insert(s1.end(), v);
+        BOOST_CHECK(s1.size() == 2*h);
+        for ( size_t i = 0 ; i < h ; ++i )
+            BOOST_CHECK(s1[i] == T(i));
+        for ( size_t i = 0 ; i < h ; ++i )
+            BOOST_CHECK(s1[i+h] == v);
+    }
 }
 
 int test_main(int, char* [])