diff --git a/ext/json/json.gemspec b/ext/json/json.gemspec
index 3ded3613d67b1a..c714ba86d19c87 100644
--- a/ext/json/json.gemspec
+++ b/ext/json/json.gemspec
@@ -18,6 +18,8 @@ Gem::Specification.new do |s|
   s.files = [
     "CHANGES.md",
     "COPYING",
+    "BSDL",
+    "LEGAL",
     "README.md",
     "ext/json/ext/fbuffer/fbuffer.h",
     "ext/json/ext/generator/depend",