diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..97a368b
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Jeremy Rand
+
+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/Listener.xcodeproj/project.pbxproj b/Listener.xcodeproj/project.pbxproj
index 9e8453f..7e654c5 100644
--- a/Listener.xcodeproj/project.pbxproj
+++ b/Listener.xcodeproj/project.pbxproj
@@ -74,6 +74,7 @@
 		9D5155C326A1ED510075EBC7 /* tail.mk */ = {isa = PBXFileReference; lastKnownFileType = text; path = tail.mk; sourceTree = "<group>"; };
 		9D5155C626A1ED510075EBC7 /* Listener.xcscheme */ = {isa = PBXFileReference; lastKnownFileType = text.xml; name = Listener.xcscheme; path = ../../Listener.xcodeproj/xcshareddata/xcschemes/Listener.xcscheme; sourceTree = "<group>"; };
 		9D5155DD26A1EDA60075EBC7 /* system601_net.2mg */ = {isa = PBXFileReference; lastKnownFileType = file; path = system601_net.2mg; sourceTree = "<group>"; };
+		9D51562026A1F0C60075EBC7 /* LICENSE */ = {isa = PBXFileReference; lastKnownFileType = text; path = LICENSE; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -90,6 +91,7 @@
 		9D51559226A1ED510075EBC7 = {
 			isa = PBXGroup;
 			children = (
+				9D51562026A1F0C60075EBC7 /* LICENSE */,
 				9D5155A426A1ED510075EBC7 /* Listener */,
 				9D51559A26A1ED510075EBC7 /* Products */,
 			);