diff --git a/ja/ebook/build.go b/ja/ebook/build.go
new file mode 120000
index 00000000..8228b893
--- /dev/null
+++ b/ja/ebook/build.go
@@ -0,0 +1 @@
+../../ebook/build.go
\ No newline at end of file
diff --git a/ja/ebook/build.sh b/ja/ebook/build.sh
new file mode 120000
index 00000000..a100c8e3
--- /dev/null
+++ b/ja/ebook/build.sh
@@ -0,0 +1 @@
+../../ebook/build.sh
\ No newline at end of file