diff --git a/src/server/job-manifest.test.ts b/src/server/job-manifest.test.ts
index adc18a6..9fdbd80 100644
--- a/src/server/job-manifest.test.ts
+++ b/src/server/job-manifest.test.ts
@@ -181,7 +181,7 @@ describe("buildJobManifest", () => {
     it("write-prompt writes PROMPT_CONTENT to /tmp/prompt/prompt.txt", () => {
       const { job } = buildJobManifest({ ctx, selfPod });
       const init = job.spec?.template?.spec?.initContainers?.[0];
-      expect(init?.command).toEqual(["sh", "-c", "echo \"$PROMPT_CONTENT\" > /tmp/prompt/prompt.txt"]);
+      expect(init?.command).toEqual(["sh", "-c", "printf '%s' \"$PROMPT_CONTENT\" > /tmp/prompt/prompt.txt"]);
     });
 
     it("write-prompt mounts prompt volume", () => {
diff --git a/src/server/job-manifest.ts b/src/server/job-manifest.ts
index 0243cfb..74a4276 100644
--- a/src/server/job-manifest.ts
+++ b/src/server/job-manifest.ts
@@ -359,7 +359,7 @@ export function buildJobManifest(input: JobBuildInput): JobBuildResult {
               name: "write-prompt",
               image: "busybox:1.36",
               imagePullPolicy: "IfNotPresent",
-              command: ["sh", "-c", "echo \"$PROMPT_CONTENT\" > /tmp/prompt/prompt.txt"],
+              command: ["sh", "-c", "printf '%s' \"$PROMPT_CONTENT\" > /tmp/prompt/prompt.txt"],
               env: [{ name: "PROMPT_CONTENT", value: prompt }],
               volumeMounts: [{ name: "prompt", mountPath: "/tmp/prompt" }],
               securityContext,