diff --git a/Makefile.am b/Makefile.am
index dadccf2529..566b28501f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -240,15 +240,22 @@ python_EXTRA_DIST=                                                           \
   python/README.txt
 
 ruby_EXTRA_DIST=                                                             \
-  ruby/ext/defs.c                                                            \
-  ruby/ext/encode_decode.c                                                   \
-  ruby/ext/extconf.rb                                                        \
-  ruby/ext/message.c                                                         \
-  ruby/ext/protobuf.c                                                        \
-  ruby/ext/protobuf.h                                                        \
-  ruby/ext/repeated_field.c                                                  \
-  ruby/ext/storage.c                                                         \
-  ruby/ext/test.rb
+  ruby/README.md                                                             \
+  ruby/Rakefile                                                              \
+  ruby/ext/google/protobuf_c/defs.c                                          \
+  ruby/ext/google/protobuf_c/encode_decode.c                                 \
+  ruby/ext/google/protobuf_c/extconf.rb                                      \
+  ruby/ext/google/protobuf_c/message.c                                       \
+  ruby/ext/google/protobuf_c/protobuf.c                                      \
+  ruby/ext/google/protobuf_c/protobuf.h                                      \
+  ruby/ext/google/protobuf_c/repeated_field.c                                \
+  ruby/ext/google/protobuf_c/storage.c                                       \
+  ruby/ext/google/protobuf_c/upb.c                                           \
+  ruby/ext/google/protobuf_c/upb.h                                           \
+  ruby/google-protobuf.gemspec                                               \
+  ruby/lib/google/protobuf.rb                                                \
+  ruby/tests/basic.rb                                                        \
+  ruby/tests/stress.rb
 
 all_EXTRA_DIST=$(java_EXTRA_DIST) $(python_EXTRA_DIST) $(ruby_EXTRA_DIST)