diff --git a/LICENSE.txt b/LICENSE.txt
index 73d8c94..8c44c66 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -131,6 +131,31 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 -------------------------------------------------------------------------------------
 
+TinyXML2 License:
+
+Original code by Lee Thomason (www.grinninglizard.com)
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any
+damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any
+purpose, including commercial applications, and to alter it and
+redistribute it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must
+not claim that you wrote the original software. If you use this
+software in a product, an acknowledgment in the product documentation
+would be appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and
+must not be misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source
+distribution.
+
+-------------------------------------------------------------------------------------
+
 Bullet Physics License:
 
 Bullet Continuous Collision Detection and Physics Library Copyright (c)