diff --git a/tools/export_tarball/export_tarball.py b/tools/export_tarball/export_tarball.py
index 268c00063b7c58..fe524706c8e93d 100644
--- a/tools/export_tarball/export_tarball.py
+++ b/tools/export_tarball/export_tarball.py
@@ -32,6 +32,7 @@
     'src/chrome/test/data',
     'o3d/documentation',
     'o3d/samples',
+    'third_party/hunspell_dictionaries',
     'third_party/lighttpd',
     'third_party/vc_80',
     'third_party/WebKit/LayoutTests',