diff --git a/src/constants/displayStyle/index.d.ts b/src/constants/displayStyle/index.d.ts
new file mode 100644
index 00000000..e8139aee
--- /dev/null
+++ b/src/constants/displayStyle/index.d.ts
@@ -0,0 +1,14 @@
+export interface DisplayStyleType {
+  name: string,
+  value: number
+}
+
+export interface DisplayStyleList {
+  DisplayNameAndUsername: DisplayStyleType,
+  DisplayName: DisplayStyleType,
+  Username: DisplayStyleType
+}
+
+declare var d: DisplayStyleList
+
+export default d
diff --git a/src/constants/displayStyle.js b/src/constants/displayStyle/index.js
similarity index 100%
rename from src/constants/displayStyle.js
rename to src/constants/displayStyle/index.js