diff --git a/config/config.exs b/config/config.exs
new file mode 100644
index 0000000..a5a6833
--- /dev/null
+++ b/config/config.exs
@@ -0,0 +1,7 @@
+import Config
+
+config :codepagex, :encodings, [
+  # CP392 is SHIFT_JIS
+  # https://en.wikipedia.org/wiki/Code_page_932_(Microsoft_Windows)
+  "VENDORS/MICSFT/WINDOWS/CP932"
+]