diff --git a/packages/ai/src/chatTransport.test.ts b/packages/ai/src/chatTransport.test.ts
index 89f67451d..1896ec1f1 100644
--- a/packages/ai/src/chatTransport.test.ts
+++ b/packages/ai/src/chatTransport.test.ts
@@ -476,6 +476,33 @@ describe("TriggerChatTransport", function () {
     expect(stream).toBeNull();
   });
 
+  it("removes inactive run entries during reconnect attempts", async function () {
+    const runStore = new TrackedRunStore();
+    runStore.set({
+      chatId: "chat-inactive",
+      runId: "run_inactive",
+      publicAccessToken: "pk_inactive",
+      streamKey: "chat-stream",
+      lastEventId: "10-0",
+      isActive: false,
+    });
+
+    const transport = new TriggerChatTransport({
+      task: "chat-task",
+      stream: "chat-stream",
+      accessToken: "pk_trigger",
+      runStore,
+    });
+
+    const stream = await transport.reconnectToStream({
+      chatId: "chat-inactive",
+    });
+
+    expect(stream).toBeNull();
+    expect(runStore.deleteCalls).toContain("chat-inactive");
+    expect(runStore.get("chat-inactive")).toBeUndefined();
+  });
+
   it("supports custom payload mapping and trigger options resolver", async function () {
     let receivedTriggerBody: Record<string, unknown> | undefined;
     let receivedResolverChatId: string | undefined;
diff --git a/packages/ai/src/chatTransport.ts b/packages/ai/src/chatTransport.ts
index d80b2fdeb..c65f5b532 100644
--- a/packages/ai/src/chatTransport.ts
+++ b/packages/ai/src/chatTransport.ts
@@ -195,7 +195,12 @@ export class TriggerChatTransport<
   ): Promise<ReadableStream<UIMessageChunk> | null> {
     const runState = await this.runStore.get(options.chatId);
 
-    if (!runState || !runState.isActive) {
+    if (!runState) {
+      return null;
+    }
+
+    if (!runState.isActive) {
+      await this.runStore.delete(options.chatId);
       return null;
     }