diff --git a/doc/container.qbk b/doc/container.qbk
index 3dda2b1..981e87e 100644
--- a/doc/container.qbk
+++ b/doc/container.qbk
@@ -1219,6 +1219,7 @@ use [*Boost.Container]? There are several reasons for that:
    * [@https://svn.boost.org/trac/boost/ticket/11170 Trac #11170: ['"Doc slip for index_of"]].
    * [@https://svn.boost.org/trac/boost/ticket/12177 Trac #12177: ['"vector::priv_merge uses unqualified uintptr_t"]].
    * [@https://svn.boost.org/trac/boost/ticket/12183 Trac #12183: ['"GCC 6.1 thinks boost::container::string violates strict aliasing"]].
+   * [@https://svn.boost.org/trac/boost/ticket/12286 Trac #12286: ['"PMR flat_map from Boost Container does not compile"]].
 
 [endsect]
 
diff --git a/test/string_test.cpp b/test/string_test.cpp
index 47d78c6..c1c2e89 100644
--- a/test/string_test.cpp
+++ b/test/string_test.cpp
@@ -347,9 +347,9 @@ int string_test()
 
       if(!CheckEqualStringVector(boostStringVect, stdStringVect)) return 1;
 
-      boostStringVect->erase((unique)(boostStringVect->begin(), boostStringVect->end()),
+      boostStringVect->erase(::unique(boostStringVect->begin(), boostStringVect->end()),
                            boostStringVect->end());
-      stdStringVect->erase((unique)(stdStringVect->begin(), stdStringVect->end()),
+      stdStringVect->erase(::unique(stdStringVect->begin(), stdStringVect->end()),
                            stdStringVect->end());
       if(!CheckEqualStringVector(boostStringVect, stdStringVect)) return 1;