diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c6c190c058..37f6ebc3fd 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -18,7 +18,6 @@ a few additions:
   please try to avoid relying on it and instead whenever possible use `std::`.
   However, please do not change existing code simply to add `std::` unless your
   contribution already needs to change that line of code anyway.
-* All source files should have the Google Inc. license header.
 * Use `///` for [Doxygen](http://www.doxygen.nl/) (use `\a` to refer to
   arguments).
 * It's not necessary to document each argument, especially when they're