diff --git a/LICENSE b/LICENSE
index 9257e71df68ca0..a34f642b3cb053 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1119,3 +1119,29 @@ The externally maintained libraries used by Node.js are:
     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   """
+
+- remark-cli, located at tools/remark-cli, is licensed as follows:
+  """
+    (The MIT License)
+
+    Copyright (c) 2014-2016 Titus Wormer <tituswormer@gmail.com>
+    Copyright (c) 2011-2014, Christopher Jeffrey (https://github.com/chjj/)
+
+    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/tools/license-builder.sh b/tools/license-builder.sh
index 3e8cc01f651801..6abeb76b1dfcc5 100755
--- a/tools/license-builder.sh
+++ b/tools/license-builder.sh
@@ -82,5 +82,7 @@ addlicense "gtest" "deps/gtest" "$(cat ${rootdir}/deps/gtest/LICENSE)"
 # nghttp2
 addlicense "nghttp2" "deps/nghttp2" "$(cat ${rootdir}/deps/nghttp2/COPYING)"
 
+# remark-cli
+addlicense "remark-cli" "tools/remark-cli" "$(cat ${rootdir}/tools/remark-cli/LICENSE)"
 
 mv $tmplicense $licensefile
diff --git a/tools/remark-cli/LICENSE b/tools/remark-cli/LICENSE
new file mode 100644
index 00000000000000..5c1b55c9995a76
--- /dev/null
+++ b/tools/remark-cli/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2016 Titus Wormer <tituswormer@gmail.com>
+Copyright (c) 2011-2014, Christopher Jeffrey (https://github.com/chjj/)
+
+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.