diff --git a/.changeset/plenty-rabbits-tickle.md b/.changeset/plenty-rabbits-tickle.md
new file mode 100644
index 000000000..06daa09a1
--- /dev/null
+++ b/.changeset/plenty-rabbits-tickle.md
@@ -0,0 +1,5 @@
+---
+"@preact/signals-react": patch
+---
+
+Fix internal property names
diff --git a/packages/react/runtime/package.json b/packages/react/runtime/package.json
index bab4daa8d..de98164a0 100644
--- a/packages/react/runtime/package.json
+++ b/packages/react/runtime/package.json
@@ -8,6 +8,7 @@
   "unpkg": "dist/runtime.min.js",
   "types": "dist/index.d.ts",
   "source": "src/index.ts",
+  "mangle": "../../../mangle.json",
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",