diff --git a/.document b/.document
index e5a784f..4a1ddfe 100644
--- a/.document
+++ b/.document
@@ -1,4 +1,4 @@
 LICENSE.txt
 README.md
-ext/io/console/console.c
+ext/
 lib/io/console/size.rb
diff --git a/ext/io/console/.document b/ext/io/console/.document
new file mode 100644
index 0000000..945a377
--- /dev/null
+++ b/ext/io/console/.document
@@ -0,0 +1,2 @@
+console.c
+lib/size.rb