diff --git a/apps/server/src/terminal/OutputProtocol.test.ts b/apps/server/src/terminal/OutputProtocol.test.ts
index 548a09c086861c1561ab239c38aa9229768ead27..a12f9d6ecbf856831f42f4e32afa0a1be3112cac 100644
--- a/apps/server/src/terminal/OutputProtocol.test.ts
+++ b/apps/server/src/terminal/OutputProtocol.test.ts
@@ -13,8 +13,10 @@ import { withTerminalOutputWindow } from "./OutputProtocol.ts";
 describe("terminal output window", () => {
   it.effect.each([
     { tag: WS_METHODS.terminalAttach, size: 1, limit: 8 },
+    { tag: WS_METHODS.terminalObserve, size: 1, limit: 8 },
     { tag: WS_METHODS.subscribeTerminalEvents, size: 1, limit: 8 },
     { tag: WS_METHODS.terminalAttach, size: 64 * 1024, limit: 1 },
+    { tag: WS_METHODS.terminalObserve, size: 64 * 1024, limit: 1 },
     { tag: WS_METHODS.subscribeTerminalMetadata, size: 1, limit: 1 },
   ])("limits $tag with $size-byte values to $limit pending chunks", ({ tag, size, limit }) =>
     Effect.gen(function* () {
diff --git a/apps/server/src/terminal/OutputProtocol.ts b/apps/server/src/terminal/OutputProtocol.ts
index 441961a7952f411312f114071ddaeaca390bcc0c..402ed32c022ae0232c56698d7bf4599ee27882f1 100644
--- a/apps/server/src/terminal/OutputProtocol.ts
+++ b/apps/server/src/terminal/OutputProtocol.ts
@@ -22,6 +22,7 @@ export function withTerminalOutputWindow(
           if (
             message._tag === "Request" &&
             (message.tag === WS_METHODS.terminalAttach ||
+              message.tag === WS_METHODS.terminalObserve ||
               message.tag === WS_METHODS.subscribeTerminalEvents)
           ) {
             const key = `${clientId}:${message.id}`;