diff --git a/babel.config.cjs b/babel.config.cjs
index 24d5e76..c134cff 100644
--- a/babel.config.cjs
+++ b/babel.config.cjs
@@ -1,3 +1,4 @@
 module.exports = {
   presets: [["@babel/preset-env", { targets: { node: "current" } }]],
+  plugins: ["svelte-inline-compile"],
 };
diff --git a/jest.config.cjs b/jest.config.cjs
index 80a2ebc..909d57e 100644
--- a/jest.config.cjs
+++ b/jest.config.cjs
@@ -10,4 +10,10 @@ module.exports = {
   moduleNameMapper: {
     "\\$lib/(.+)$": "<rootDir>/src/lib/$1",
   },
+  globals: {
+    "ts-jest": {
+      babelConfig: true,
+      useESM: true,
+    }
+  }
 };
diff --git a/src/types/svelte-inline-compile/index.d.ts b/src/types/svelte-inline-compile/index.d.ts
new file mode 100644
index 0000000..5f8b0cb
--- /dev/null
+++ b/src/types/svelte-inline-compile/index.d.ts
@@ -0,0 +1,2 @@
+declare function svelte(input: any): any;
+export = svelte;
diff --git a/tsconfig.json b/tsconfig.json
index 3bc99b6..6ea8b04 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -25,7 +25,8 @@
     "checkJs": true,
     "paths": {
       "$lib": ["src/lib"],
-      "$lib/*": ["src/lib/*"]
+      "$lib/*": ["src/lib/*"],
+      "*": ["src/types/*"]
     }
   },
   "include": ["src/**/*.d.ts", "src/**/*.js", "src/**/*.ts", "src/**/*.svelte"]