diff --git a/doc/interprocess.qbk b/doc/interprocess.qbk
index 7787482..822bc41 100644
--- a/doc/interprocess.qbk
+++ b/doc/interprocess.qbk
@@ -6734,6 +6734,7 @@ thank them:
 
 [section:release_notes_boost_1_59_00 Boost 1.59 Release]
 *  Fixed bugs:
+   * [@https://svn.boost.org/trac/boost/ticket/5139 ( Trac #5139 ( (['"Initial Stream Position in Boost.Interprocess.Vectorstream"])].
    * [@https://github.com/boostorg/interprocess/pull/19 GitHub Pull #19 (['"Fix exception visibility"])]. Thanks to Romain-Geissler.
 
 [endsect]
diff --git a/include/boost/interprocess/streams/bufferstream.hpp b/include/boost/interprocess/streams/bufferstream.hpp
index 9a862e5..015d03c 100644
--- a/include/boost/interprocess/streams/bufferstream.hpp
+++ b/include/boost/interprocess/streams/bufferstream.hpp
@@ -200,8 +200,8 @@ class basic_bufferbuf
 
       if(!in && !out)
          return pos_type(off_type(-1));
-      else if((in  && (!(m_mode & std::ios_base::in) || this->gptr() == 0)) ||
-               (out && (!(m_mode & std::ios_base::out) || this->pptr() == 0)))
+      else if((in  && (!(m_mode & std::ios_base::in) || (off != 0 && this->gptr() == 0) )) ||
+               (out && (!(m_mode & std::ios_base::out) || (off != 0 && this->pptr() == 0))))
          return pos_type(off_type(-1));
 
       std::streamoff newoff;
diff --git a/include/boost/interprocess/streams/vectorstream.hpp b/include/boost/interprocess/streams/vectorstream.hpp
index b6f873e..8f6bf38 100644
--- a/include/boost/interprocess/streams/vectorstream.hpp
+++ b/include/boost/interprocess/streams/vectorstream.hpp
@@ -298,8 +298,8 @@ class basic_vectorbuf
          return pos_type(off_type(-1));
       else if((in && out) && (dir == std::ios_base::cur))
          return pos_type(off_type(-1));
-      else if((in  && (!(m_mode & std::ios_base::in) || this->gptr() == 0)) ||
-               (out && (!(m_mode & std::ios_base::out) || this->pptr() == 0)))
+      else if((in  && (!(m_mode & std::ios_base::in) || (off != 0 && this->gptr() == 0) )) ||
+               (out && (!(m_mode & std::ios_base::out) || (off != 0 && this->pptr() == 0))))
          return pos_type(off_type(-1));
 
       off_type newoff;
diff --git a/test/bufferstream_test.cpp b/test/bufferstream_test.cpp
index 7f82521..6b6cb24 100644
--- a/test/bufferstream_test.cpp
+++ b/test/bufferstream_test.cpp
@@ -34,6 +34,12 @@ static int bufferstream_test()
       //This will be zero-initialized
       static char buffer [BufSize];
       bufferstream bufstream;
+      if(bufstream.tellg() != std::streampos(0)){
+         return 1;
+      }
+      if(bufstream.tellp() != std::streampos(0)){
+         return 1;
+      }
       std::stringstream std_stringstream;
       std::string str1, str2, str3("testline:");
       int number1, number2;
@@ -129,7 +135,7 @@ static int bufferstream_test()
 
 int main ()
 {
-   if(bufferstream_test()==-1){
+   if(bufferstream_test()){
       return 1;
    }
    return 0;
diff --git a/test/vectorstream_test.cpp b/test/vectorstream_test.cpp
index e072ecd..d20b82a 100644
--- a/test/vectorstream_test.cpp
+++ b/test/vectorstream_test.cpp
@@ -39,6 +39,14 @@ static int vectorstream_test()
 {
    {  //Test high watermarking initialization
       my_stringstream_t my_stringstream;
+
+      if(my_stringstream.tellg() != std::streampos(0)){
+         return 1;
+      }
+      if(my_stringstream.tellp() != std::streampos(0)){
+         return 1;
+      }
+
       int a (0);
       my_stringstream << 11;
       my_stringstream >> a;