diff --git a/.changeset/stale-pianos-buy.md b/.changeset/stale-pianos-buy.md
new file mode 100644
index 00000000000..79e526920a2
--- /dev/null
+++ b/.changeset/stale-pianos-buy.md
@@ -0,0 +1,5 @@
+---
+'@firebase/database': patch
+---
+
+Fix setting of headers on Node.
diff --git a/packages/database/src/realtime/WebSocketConnection.ts b/packages/database/src/realtime/WebSocketConnection.ts
index d23dd2afe86..4610a7f9b43 100644
--- a/packages/database/src/realtime/WebSocketConnection.ts
+++ b/packages/database/src/realtime/WebSocketConnection.ts
@@ -166,7 +166,7 @@ export class WebSocketConnection implements Transport {
       if (isNodeSdk()) {
         const device = this.nodeAdmin ? 'AdminNode' : 'Node';
         // UA Format: Firebase/<wire_protocol>/<sdk_version>/<platform>/<device>
-        const options: { [k: string]: object } = {
+        options = {
           headers: {
             'User-Agent': `Firebase/${PROTOCOL_VERSION}/${SDK_VERSION}/${process.platform}/${device}`,
             'X-Firebase-GMPID': this.applicationId || ''