diff --git a/README.md b/README.md
new file mode 100644
index 0000000..babda96
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+[![Travis Badge](https://travis-ci.org/Phundrak/lzw-assignment.svg?branch=master)](https://travis-ci.org/Phundrak/lzw-assignment)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/e8fd3d18f7c54055ac30dca378d2ada8)](https://www.codacy.com/app/Phundrak/PhundrakSTL?utm_source=github.com&utm_medium=referral&utm_content=Phundrak/PhundrakSTL&utm_campaign=Badge_Grade)
+[![Spacemacs Badge](https://cdn.rawgit.com/syl20bnr/spacemacs/442d025779da2f62fc86c2082703697714db6514/assets/spacemacs-badge.svg)](http://spacemacs.org)
+
+# LZW Compressing tool
+
+This is a university assignment for which I aim to create an LZW algorithm implementation to create a small tool similar to `gzip` and `gunzip` that can compress and uncompress files in a lossless fashion.
+
+This project is written is C++17, compiled with clang under a UNIX environment. Other compilers and environments will not be tested.
diff --git a/README.org b/README.org
deleted file mode 100644
index aceecf0..0000000
--- a/README.org
+++ /dev/null
@@ -1,7 +0,0 @@
-[[https://travis-ci.org/Phundrak/lzw-assignment][https://travis-ci.org/Phundrak/lzw-assignment.svg?branch=master]] [[http://spacemacs.org][file:https://cdn.rawgit.com/syl20bnr/spacemacs/442d025779da2f62fc86c2082703697714db6514/assets/spacemacs-badge.svg]]
-
-* LZW Compressing tool
-
-This is a university assignment for which I aim to create an LZW algorithm implementation to create a small tool similar to =gzip= and =gunzip= that can compress and uncompress files in a lossless fashion.
-
-This project is written is C++17, compiled with clang under a UNIX environment. Other compilers and environments will not be tested.
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..1c3a1fc
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,22 @@
+version: '{branch}-{build}'
+
+environment:
+  matrix:
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      MSVC_GENERATOR: Visual Studio 15 2017
+      MSVC_GENERATOR_SHORT: VS2017
+
+platform:
+  - x64
+
+shallow_clone: true
+
+before_build:
+  - cmd: choco install make
+
+build_script:
+  - cmd: set PATH=%PATH%;C:\ProgramData\chocolatey\lib\make\tools
+  - cmd: cd build
+  - cmd: cmake -DCMAKE_BUILD_TYPE=Debug ..
+  - cmd: dir
+  - cmd: make
diff --git a/src/utf8.cc b/src/utf8.cc
index b509ef3..129f36e 100644
--- a/src/utf8.cc
+++ b/src/utf8.cc
@@ -45,7 +45,7 @@ void write_utf8(FILE* t_out, uint32_t t_c) {
   ustring str(loops + 1, 0);
   for (size_t i = 0; i <= loops; ++i) {
     str[i] = static_cast<unsigned char>(
-        ((t_c & (i == loops) ? 0x3F : 0xFF) >> ((loops - i) * 6)) +
+        ((t_c & ((i == loops) ? 0x3F : 0xFF)) >> ((loops - i) * 6)) +
         ((i == 0) ? header : 0x80));
   }
   fwrite(str.data(), sizeof(unsigned char), str.size(), t_out);