diff --git a/packages/shared/src/atomicWrite.test.ts b/packages/shared/src/atomicWrite.test.ts
index 6aec907c049ad..f0e3bc129cf0a 100644
--- a/packages/shared/src/atomicWrite.test.ts
+++ b/packages/shared/src/atomicWrite.test.ts
@@ -79,6 +79,21 @@ it.layer(NodeServices.layer)("writeFileStringAtomically", (it) => {
     }),
   );
 
+  it.effect.each(HostProcess.Platform.defaultValue() === "linux" ? [255] : [])(
+    "saves a file whose name is %i bytes long",
+    (length) =>
+      Effect.gen(function* () {
+        const fs = yield* FileSystem.FileSystem;
+        const path = yield* Path.Path;
+        const root = yield* fs.makeTempDirectoryScoped({ prefix: "t3-atomic-write-" });
+        const filePath = path.join(root, `${"s".repeat(length - 5)}.json`);
+
+        yield* writeFileStringAtomically({ filePath, contents: "after" });
+
+        assert.strictEqual(yield* fs.readFileString(filePath), "after");
+      }),
+  );
+
   it.effect("keeps a dangling symlink linked and creates its destination", () =>
     Effect.gen(function* () {
       const fs = yield* FileSystem.FileSystem;
diff --git a/packages/shared/src/atomicWrite.ts b/packages/shared/src/atomicWrite.ts
index 39904817fb673..febd1a98fbfca 100644
--- a/packages/shared/src/atomicWrite.ts
+++ b/packages/shared/src/atomicWrite.ts
@@ -36,7 +36,7 @@ export const writeFileStringAtomically = (input: {
       const tempDirectory = yield* Effect.acquireRelease(
         fs.makeTempDirectory({
           directory: targetDirectory,
-          prefix: `${path.basename(targetPath)}.`,
+          prefix: "t3-write-",
         }),
         (directory) => fs.remove(directory, { recursive: true }).pipe(Effect.ignore({ log: true })),
       );