diff --git a/.tstoolkitrc.ts b/.tstoolkitrc.ts
index 27cbfce..4058bc4 100644
--- a/.tstoolkitrc.ts
+++ b/.tstoolkitrc.ts
@@ -10,7 +10,7 @@ const config: TsToolkitConfig = {
     exports: {
       '.': 'index.ts',
       './runtime-helpers': 'runtime-helpers.ts',
-      './test-transformer': 'test-transformer.ts',
+      './test-transformer/index': 'test-transformer.ts',
     },
   },
 }
diff --git a/rollup.config.ts b/rollup.config.ts
index 8c7c2f8..22bda1b 100644
--- a/rollup.config.ts
+++ b/rollup.config.ts
@@ -8,7 +8,7 @@ const config: RollupOptions = {
   input: {
     index: 'src/index.ts',
     'runtime-helpers': 'src/runtime-helpers.ts',
-    'test-transformer': 'src/test-transformer/index.ts',
+    'test-transformer/index': 'src/test-transformer/index.ts',
   },
   output: [
     {