diff --git a/news/changelog-1.6.md b/news/changelog-1.6.md
index 1743764ed19..1a4432acb99 100644
--- a/news/changelog-1.6.md
+++ b/news/changelog-1.6.md
@@ -102,6 +102,7 @@ All changes included in 1.6:
 - Upgrade `mermaidjs` to 11.2.0.
 - Upgrade Pandoc to 3.4.
 - Upgrade `deno` to 1.46.3.
+- ([#2699])(https://github.com/quarto-dev/quarto-cli/issues/2699)): Respect input/output streams in `quarto pandoc`.
 - ([#10162](https://github.com/quarto-dev/quarto-cli/issues/10162)): Use Edge on `macOS` as a Chromium browser when available.
 - ([#10235](https://github.com/quarto-dev/quarto-cli/issues/10235)): Configure the CI schedule trigger to activate exclusively for the upstream repository.
 - ([#10295](https://github.com/quarto-dev/quarto-cli/issues/10235)): Fix regression to return error status to shell when `CommandError` is thrown.
diff --git a/src/quarto.ts b/src/quarto.ts
index 76411af26aa..5d6384ca0f4 100644
--- a/src/quarto.ts
+++ b/src/quarto.ts
@@ -68,10 +68,16 @@ export async function quarto(
 
   // passthrough to pandoc
   if (args[0] === "pandoc" && args[1] !== "help") {
-    const result = await execProcess({
-      cmd: [pandocBinaryPath(), ...args.slice(1)],
-      env,
-    });
+    const result = await execProcess(
+      {
+        cmd: [pandocBinaryPath(), ...args.slice(1)],
+        env,
+      },
+      undefined,
+      undefined,
+      undefined,
+      true,
+    );
     Deno.exit(result.code);
   }