diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c5b2258..5527fa1b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@ Version 100:
 
 * Fix doc convenience includes
 * Fix doc includes
+* Remove unused test header
 
 --------------------------------------------------------------------------------
 
diff --git a/test/beast/zlib/CMakeLists.txt b/test/beast/zlib/CMakeLists.txt
index 7ebf555b..c9de3848 100644
--- a/test/beast/zlib/CMakeLists.txt
+++ b/test/beast/zlib/CMakeLists.txt
@@ -22,7 +22,6 @@ add_executable (tests-beast-zlib
     ${ZLIB_SOURCES}
     ${TEST_MAIN}
     Jamfile
-    ztest.hpp
     error.cpp
     deflate_stream.cpp
     inflate_stream.cpp
diff --git a/test/beast/zlib/deflate_stream.cpp b/test/beast/zlib/deflate_stream.cpp
index 1d8a09da..9d840371 100644
--- a/test/beast/zlib/deflate_stream.cpp
+++ b/test/beast/zlib/deflate_stream.cpp
@@ -17,8 +17,6 @@
 
 #include "zlib-1.2.11/zlib.h"
 
-#include "ztest.hpp"
-
 namespace boost {
 namespace beast {
 namespace zlib {
diff --git a/test/beast/zlib/inflate_stream.cpp b/test/beast/zlib/inflate_stream.cpp
index dc6c8522..546faa50 100644
--- a/test/beast/zlib/inflate_stream.cpp
+++ b/test/beast/zlib/inflate_stream.cpp
@@ -15,7 +15,7 @@
 #include <chrono>
 #include <random>
 
-#include "ztest.hpp"
+#include "zlib-1.2.11/zlib.h"
 
 namespace boost {
 namespace beast {
diff --git a/test/beast/zlib/ztest.hpp b/test/beast/zlib/ztest.hpp
deleted file mode 100644
index 5a2077f0..00000000
--- a/test/beast/zlib/ztest.hpp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-// Official repository: https://github.com/boostorg/beast
-//
-
-#ifndef BOOST_BEAST_ZTEST_HPP
-#define BOOST_BEAST_ZTEST_HPP
-
-#include "zlib-1.2.11/zlib.h"
-
-#include <string>
-
-class z_deflator
-{
-    int level_      = Z_DEFAULT_COMPRESSION;
-    int windowBits_ = 15;
-    int memLevel_   = 4;
-    int strategy_   = Z_DEFAULT_STRATEGY;
-
-public:
-    // -1    = default
-    //  0    = none
-    //  1..9 = faster<-->better
-    void
-    level(int n)
-    {
-        level_ = n;
-    }
-
-    void
-    windowBits(int n)
-    {
-        windowBits_ = n;
-    }
-
-    void
-    memLevel(int n)
-    {
-        memLevel_ = n;
-    }
-
-    void
-    strategy(int n)
-    {
-        strategy_ = n;
-    }
-
-    std::string
-    operator()(std::string const& in)
-    {
-        int result;
-        z_stream zs;
-        memset(&zs, 0, sizeof(zs));
-        result = deflateInit2(
-            &zs,
-            level_,
-            Z_DEFLATED,
-            -windowBits_,
-            memLevel_,
-            strategy_
-        );
-        if(result != Z_OK)
-            throw std::logic_error("deflateInit2 failed");
-        std::string out;
-        out.resize(deflateBound(&zs,
-            static_cast<uLong>(in.size())));
-        zs.next_in = (Bytef*)in.data();
-        zs.avail_in = static_cast<uInt>(in.size());
-        zs.next_out = (Bytef*)&out[0];
-        zs.avail_out = static_cast<uInt>(out.size());
-        result = deflate(&zs, Z_FULL_FLUSH);
-        if(result != Z_OK)
-            throw std::logic_error("deflate failed");
-        out.resize(zs.total_out);
-        deflateEnd(&zs);
-        return out;
-    }
-};
-
-#endif