diff --git a/src/viewer.js b/src/viewer.js
index 9d6e19be..c1754d88 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -11,7 +11,7 @@
  * - Redistributions of source code must retain the above copyright notice,
  *   this list of conditions and the following disclaimer.
  *
- * - Redistributions in binary form must reproduce the above copyrightthis
+ * - Redistributions in binary form must reproduce the above copyright
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  *