diff --git a/include/boost/regex/v4/basic_regex_parser.hpp b/include/boost/regex/v4/basic_regex_parser.hpp
index aefabacb..0071a8ce 100644
--- a/include/boost/regex/v4/basic_regex_parser.hpp
+++ b/include/boost/regex/v4/basic_regex_parser.hpp
@@ -543,7 +543,11 @@ bool basic_regex_parser<charT, traits>::parse_open_paren()
 template <class charT, class traits>
 bool basic_regex_parser<charT, traits>::parse_basic_escape()
 {
-   ++m_position;
+   if(++m_position == m_end)
+   {
+      fail(regex_constants::error_paren, m_position - m_base);
+      return false;
+   }
    bool result = true;
    switch(this->m_traits.escape_syntax_type(*m_position))
    {
diff --git a/test/regress/basic_tests.cpp b/test/regress/basic_tests.cpp
index a1251f9b..25f00c24 100644
--- a/test/regress/basic_tests.cpp
+++ b/test/regress/basic_tests.cpp
@@ -61,6 +61,7 @@ void basic_tests()
    TEST_REGEX_SEARCH("\\(\\)", basic, "", match_default, make_array(0, 0, 0, 0, -2, -2));
    TEST_INVALID_REGEX("\\(", basic);
    TEST_INVALID_REGEX("\\)", basic);
+   TEST_INVALID_REGEX("\\", basic);
    TEST_INVALID_REGEX("\\(aa", basic);
    TEST_INVALID_REGEX("aa\\)", basic);
    TEST_REGEX_SEARCH("()", basic, "()", match_default, make_array(0, 2, -2, -2));