diff --git a/docker/Dockerfile.debian b/docker/Dockerfile.debian
index e9e5a1f3..a2d28e55 100644
--- a/docker/Dockerfile.debian
+++ b/docker/Dockerfile.debian
@@ -15,6 +15,5 @@ RUN apt-get -y install cmake
 
 COPY . .
 
-#WORKDIR examples/ws_connect
-#RUN ["sh", "build_linux.sh"]
-RUN ["make", "test"]
+WORKDIR test
+RUN ["sh", "build_linux.sh"]
diff --git a/ixwebsocket/IXWebSocketServer.cpp b/ixwebsocket/IXWebSocketServer.cpp
index 3778f09e..68fcd0ff 100644
--- a/ixwebsocket/IXWebSocketServer.cpp
+++ b/ixwebsocket/IXWebSocketServer.cpp
@@ -16,6 +16,7 @@
 #include <stdio.h>
 #include <arpa/inet.h>
 #include <sys/socket.h>
+#include <string.h>
 
 namespace ix 
 {
diff --git a/makefile b/makefile
index 295cb5ae..5be1fed7 100644
--- a/makefile
+++ b/makefile
@@ -21,6 +21,6 @@ build:
 test_server:
 	(cd test && npm i ws && node broadcast-server.js)
 test:
-	(cd test && cmake . && make && ./ixwebsocket_unittest)
+	(cd test && sh run.sh)
 
 .PHONY: test
diff --git a/test/build_linux.sh b/test/build_linux.sh
new file mode 100644
index 00000000..c8d9f4e5
--- /dev/null
+++ b/test/build_linux.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
+#
+
+# 'manual' way of building. You can also use cmake.
+
+g++ --std=c++11 \
+    -DIXWEBSOCKET_USE_TLS \
+    -g \
+    ../ixwebsocket/IXEventFd.cpp	\
+    ../ixwebsocket/IXSocket.cpp	\
+    ../ixwebsocket/IXSetThreadName.cpp	\
+    ../ixwebsocket/IXWebSocketTransport.cpp \
+    ../ixwebsocket/IXWebSocket.cpp \
+    ../ixwebsocket/IXWebSocketServer.cpp \
+    ../ixwebsocket/IXDNSLookup.cpp \
+    ../ixwebsocket/IXSocketConnect.cpp \
+    ../ixwebsocket/IXSocketOpenSSL.cpp \
+    ../ixwebsocket/IXWebSocketPerMessageDeflate.cpp \
+    ../ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp \
+    -I ../.. \
+    -I Catch2/single_include \
+    test_runner.cpp \
+    cmd_websocket_chat.cpp \
+    IXTest.cpp \
+    msgpack11.cpp \
+    -o ixwebsocket_unittest \
+    -lcrypto -lssl -lz -lpthread