diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f362fe1
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Joseph T. Lapp
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index f0ade45..5e4a197 100644
--- a/README.md
+++ b/README.md
@@ -175,3 +175,29 @@ subtap
 ## Acknowledgements
 
 This module began by borrowing and modifying code from CanyonCasa's [answer to a stackoverflow question](http://stackoverflow.com/a/21947851/650894). I had found the code necessary for all my node projects. @Banjocat piped in with a [comment](http://stackoverflow.com/questions/14031763/doing-a-cleanup-action-just-before-node-js-exits/21947851#comment68567869_21947851) about how the solution didn't properly handle SIGINT. (See [this detailed explanation](https://www.cons.org/cracauer/sigint.html) of the SIGINT problem). I have completely rewritten the module to properly deal with SIGINT and other signals (I hope!). The rewrite also provides some additional flexibility that @zixia and I found ourselves needing for our respective projects.
+
+## License
+
+*This license applies to v2 and later. v1 derived from [this stackoverflow answewr](http://stackoverflow.com/a/21947851/650894).*
+
+MIT License
+
+Copyright (c) 2016 Joseph T. Lapp
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/package.json b/package.json
index 195b91e..de42fbb 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
     "url": "https://github.com/jtlapp/node-cleanup/issues"
   },
   "homepage": "https://github.com/jtlapp/node-cleanup#readme",
+  "license": "MIT",
   "devDependencies": {
     "memory-streams": "^0.1.0",
     "tap": "^8.0.1"