diff --git a/boost/iostreams/filter/test.hpp b/boost/iostreams/filter/test.hpp
index 3b01fed..476d4a3 100644
--- a/boost/iostreams/filter/test.hpp
+++ b/boost/iostreams/filter/test.hpp
@@ -153,7 +153,7 @@ bool test_input_filter( Filter filter,
     {
         non_blocking_source  src(input, inc);
         std::string          dest;
-        iostreams::copy(compose(filter, src), iostreams::back_inserter(dest));
+        iostreams::copy(iostreams::compose(filter, src), iostreams::back_inserter(dest));
         if (dest != output)
             return false;
     }
@@ -197,7 +197,7 @@ bool test_output_filter( Filter filter,
     {
         array_source  src(input.data(), input.data() + input.size());
         std::string   dest;
-        iostreams::copy(src, compose(filter, non_blocking_sink(dest, inc)));
+        iostreams::copy(src, iostreams::compose(filter, non_blocking_sink(dest, inc)));
         if (dest != output )
             return false;
     }
@@ -243,9 +243,9 @@ bool test_filter_pair( OutputFilter out,
             array_source  src(data.data(), data.data() + data.size());
             std::string   temp;
             std::string   dest;
-            iostreams::copy(src, compose(out, non_blocking_sink(temp, inc)));
+            iostreams::copy(src, iostreams::compose(out, non_blocking_sink(temp, inc)));
             iostreams::copy( 
-                compose(in, non_blocking_source(temp, inc)),
+                iostreams::compose(in, non_blocking_source(temp, inc)),
                 iostreams::back_inserter(dest)
             );
             if (dest != data)
@@ -255,13 +255,13 @@ bool test_filter_pair( OutputFilter out,
             array_source  src(data.data(), data.data() + data.size());
             std::string   temp;
             std::string   dest;
-            iostreams::copy(src, compose(out, non_blocking_sink(temp, inc)));
+            iostreams::copy(src, iostreams::compose(out, non_blocking_sink(temp, inc)));
             // truncate the file, this should not loop, it may throw
             // std::ios_base::failure, which we swallow.
             try {
                 temp.resize(temp.size() / 2);
                 iostreams::copy( 
-                    compose(in, non_blocking_source(temp, inc)),
+                    iostreams::compose(in, non_blocking_source(temp, inc)),
                     iostreams::back_inserter(dest)
                 );
             } catch(std::ios_base::failure&) {}
@@ -270,10 +270,10 @@ bool test_filter_pair( OutputFilter out,
             array_source  src(data.data(), data.data() + data.size());
             std::string   temp;
             std::string   dest;
-            iostreams::copy(compose(out, src), non_blocking_sink(temp, inc));
+            iostreams::copy(iostreams::compose(out, src), non_blocking_sink(temp, inc));
             iostreams::copy( 
                 non_blocking_source(temp, inc),
-                compose(in, iostreams::back_inserter(dest))
+                iostreams::compose(in, iostreams::back_inserter(dest))
             );
             if (dest != data)
                 return false;
@@ -282,14 +282,14 @@ bool test_filter_pair( OutputFilter out,
             array_source  src(data.data(), data.data() + data.size());
             std::string   temp;
             std::string   dest;
-            iostreams::copy(compose(out, src), non_blocking_sink(temp, inc));
+            iostreams::copy(iostreams::compose(out, src), non_blocking_sink(temp, inc));
             // truncate the file, this should not loop, it may throw
             // std::ios_base::failure, which we swallow.
             try {
                 temp.resize(temp.size() / 2);
                 iostreams::copy( 
                     non_blocking_source(temp, inc),
-                    compose(in, iostreams::back_inserter(dest))
+                    iostreams::compose(in, iostreams::back_inserter(dest))
                 );
             } catch(std::ios_base::failure&) {}
         }