diff --git a/scripts/src/debug.ts b/scripts/src/debug.ts
index d7735f13..f055234e 100644
--- a/scripts/src/debug.ts
+++ b/scripts/src/debug.ts
@@ -27,7 +27,7 @@ function coreFetchCommand(path: string, init?: { method?: string; body?: unknown
   const url = `http://127.0.0.1:8080${path}`;
   const body = init?.body === undefined ? "" : JSON.stringify(init.body);
   const script = [
-    "set -euo pipefail",
+    "set -eu",
     "if command -v backend-core >/dev/null 2>&1; then",
     `  exec backend-core --fetch-json ${shellQuote(url)} --method ${shellQuote(method)}${body.length > 0 ? ` --body-json ${shellQuote(body)}` : ""}`,
     "fi",