diff --git a/src/providers/anthropic/chatComplete.ts b/src/providers/anthropic/chatComplete.ts
index a6ac100e2..680dc75b5 100644
--- a/src/providers/anthropic/chatComplete.ts
+++ b/src/providers/anthropic/chatComplete.ts
@@ -481,7 +481,7 @@ export const AnthropicChatCompleteStreamChunkTransform: (
 
   const parsedChunk: AnthropicChatCompleteStreamResponse = JSON.parse(chunk);
 
-  if (parsedChunk.type === 'error') return 'data: [DONE]\n\n';
+  if (parsedChunk.type === 'error') return;
 
   if (
     parsedChunk.type === 'content_block_start' &&
diff --git a/src/providers/google-vertex-ai/chatComplete.ts b/src/providers/google-vertex-ai/chatComplete.ts
index e2f8f651c..057562b80 100644
--- a/src/providers/google-vertex-ai/chatComplete.ts
+++ b/src/providers/google-vertex-ai/chatComplete.ts
@@ -894,7 +894,7 @@ export const VertexAnthropicChatCompleteStreamChunkTransform: (
 
   const parsedChunk: AnthropicChatCompleteStreamResponse = JSON.parse(chunk);
 
-  if (parsedChunk.type === 'error') return 'data: [DONE]\n\n';
+  if (parsedChunk.type === 'error') return;
 
   if (
     parsedChunk.type === 'content_block_start' &&