diff --git a/LICENSE b/LICENSE
index 1afebdf..ab8ee6f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -17,3 +17,6 @@ Copyright notice:
   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.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu