diff --git a/Makefile.am b/Makefile.am
index e5cc945..bbc79b2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -43,7 +43,7 @@ MKDIR_P = @MKDIR_P@
 
 # see README
 SUBDIRS = doc
-EXTRA_DIST = AUTHORS NEWS ChangeLog README.md README.hacking \
+EXTRA_DIST = AUTHORS NEWS ChangeLog README.md README.hacking README.traits \
              lib test index.js package.json \
              $(path_combine_output) $(path_combine_output_full) \
              $(path_browser_test) $(path_combine_output_min) \