diff --git a/libs/sdk-js/src/index.ts b/libs/sdk-js/src/index.ts
index 956f5f64b..eb399a9b2 100644
--- a/libs/sdk-js/src/index.ts
+++ b/libs/sdk-js/src/index.ts
@@ -36,6 +36,7 @@ export type {
   MessagesStreamEvent,
   DebugStreamEvent,
   EventsStreamEvent,
+  ErrorStreamEvent,
 } from "./types.stream.js";
 export type {
   Message,
diff --git a/libs/sdk-js/src/types.stream.ts b/libs/sdk-js/src/types.stream.ts
index 4a36652d7..7ca7742d1 100644
--- a/libs/sdk-js/src/types.stream.ts
+++ b/libs/sdk-js/src/types.stream.ts
@@ -64,6 +64,17 @@ export type MetadataStreamEvent = {
 /** @internal */
 export type SubgraphMetadataStreamEvent = AsSubgraph<MetadataStreamEvent>;
 
+/**
+ * Stream event with error information.
+ */
+export type ErrorStreamEvent = {
+  event: "error";
+  data: { error: string; message: string };
+};
+
+/** @internal */
+export type SubgraphErrorStreamEvent = AsSubgraph<ErrorStreamEvent>;
+
 /**
  * Stream event with updates to the state after each step.
  * The streamed outputs include the name of the node that
@@ -146,7 +157,8 @@ type GetStreamModeMap<
       "messages-tuple": MessagesTupleStreamEvent;
       events: EventsStreamEvent;
     }[TStreamMode extends StreamMode[] ? TStreamMode[number] : TStreamMode]
-  | MetadataStreamEvent;
+  | MetadataStreamEvent
+  | ErrorStreamEvent;
 
 type GetSubgraphsStreamModeMap<
   TStreamMode extends StreamMode | StreamMode[],
@@ -163,7 +175,8 @@ type GetSubgraphsStreamModeMap<
       "messages-tuple": SubgraphMessagesTupleStreamEvent;
       events: SubgraphEventsStreamEvent;
     }[TStreamMode extends StreamMode[] ? TStreamMode[number] : TStreamMode]
-  | SubgraphMetadataStreamEvent;
+  | SubgraphMetadataStreamEvent
+  | SubgraphErrorStreamEvent;
 
 export type TypedAsyncGenerator<
   TStreamMode extends StreamMode | StreamMode[] = [],