diff --git a/examples/spec/process.js b/examples/spec/process.js
index c2e3c4e..8e54d89 100644
--- a/examples/spec/process.js
+++ b/examples/spec/process.js
@@ -157,6 +157,10 @@ test('versions is object', typeof process.versions, 'object');
 test('versions.ant exists', typeof process.versions.ant, 'string');
 test('versions.uv exists', typeof process.versions.uv, 'string');
 
+test('features is object', typeof process.features, 'object');
+test('features.uv is boolean', typeof process.features.uv, 'boolean');
+test('features.typescript exists', typeof process.features.typescript, 'string');
+
 test('release is object', typeof process.release, 'object');
 test('release.name is string', typeof process.release.name, 'string');
 
diff --git a/meson/snapshot/meson.build b/meson/snapshot/meson.build
index 86ff705..d3815a7 100644
--- a/meson/snapshot/meson.build
+++ b/meson/snapshot/meson.build
@@ -12,7 +12,7 @@ snapshot_h = custom_target(
   command: [
     node,
     src_root / 'src' / 'tools' / 'gen_snapshot.js',
-    '@INPUT0@', 
+    src_root / 'src' / 'core' / 'index.ts',
     '@OUTPUT@',
     'VERSION=' + ant_version,
     'GIT_HASH=' + git_hash,
@@ -21,4 +21,4 @@ snapshot_h = custom_target(
     'MBEDTLS=' + (tls_lib == 'mbedtls').to_string(),
     'HOST=' + host_machine.system(),
   ],
-)
\ No newline at end of file
+)
diff --git a/sources.json b/sources.json
index 5759272..a79476a 100644
--- a/sources.json
+++ b/sources.json
@@ -9,6 +9,6 @@
   },
   "core": {
     "patterns": ["src/core/**/*.ts"],
-    "exclude": []
+    "exclude": ["src/core/index.ts"]
   }
 }