diff --git a/packages/launchpad-ledger/custom_types/ledger-cosmos-js.d.ts b/packages/launchpad-ledger/custom_types/ledger-cosmos-js/index.d.ts
similarity index 100%
rename from packages/launchpad-ledger/custom_types/ledger-cosmos-js.d.ts
rename to packages/launchpad-ledger/custom_types/ledger-cosmos-js/index.d.ts
diff --git a/packages/launchpad-ledger/tsconfig.json b/packages/launchpad-ledger/tsconfig.json
index 44242629..1d612642 100644
--- a/packages/launchpad-ledger/tsconfig.json
+++ b/packages/launchpad-ledger/tsconfig.json
@@ -5,7 +5,11 @@
     "outDir": "build",
     "declarationDir": "build/types",
     "rootDir": "src",
+    "typeRoots": [
+      "./custom_types",
+      "../../node_modules/@types"
+    ],
     "lib": ["es2017", "dom"]
   },
-  "include": ["src/**/*", "./custom_types/*"]
+  "include": ["src/**/*"]
 }