diff --git a/.changeset/pretty-cows-smoke.md b/.changeset/pretty-cows-smoke.md
new file mode 100644
index 0000000000000000000000000000000000000000..680fc0f93a246c0225b97d9d5b05f3b0c2b741bc
--- /dev/null
+++ b/.changeset/pretty-cows-smoke.md
@@ -0,0 +1,5 @@
+---
+"llamaindex": patch
+---
+
+fix: switch to correct reference for a static function
diff --git a/packages/llamaindex/src/EngineResponse.ts b/packages/llamaindex/src/EngineResponse.ts
index 8cfa9d195a397450a589260bd81c975ca53b1e12..5e24afa421f4f05e2c88737cf7cf6e1d85291958 100644
--- a/packages/llamaindex/src/EngineResponse.ts
+++ b/packages/llamaindex/src/EngineResponse.ts
@@ -64,7 +64,7 @@ export class EngineResponse implements ChatResponse, ChatResponseChunk {
     sourceNodes?: NodeWithScore[],
   ): EngineResponse {
     return new EngineResponse(
-      this.toChatResponse(chunk.delta, chunk.raw),
+      EngineResponse.toChatResponse(chunk.delta, chunk.raw),
       true,
       sourceNodes,
     );