diff --git a/_tools/check_docs.ts b/_tools/check_docs.ts
index f1570f036..89e8f80ff 100644
--- a/_tools/check_docs.ts
+++ b/_tools/check_docs.ts
@@ -74,6 +74,7 @@ const ENTRY_POINTS = [
   "../regexp/mod.ts",
   "../semver/mod.ts",
   "../streams/mod.ts",
+  "../streams/unstable_fixed_chunk_stream.ts",
   "../streams/unstable_to_lines.ts",
   "../tar/mod.ts",
   "../text/mod.ts",
diff --git a/streams/deno.json b/streams/deno.json
index 5521d31de..1f178d588 100644
--- a/streams/deno.json
+++ b/streams/deno.json
@@ -11,7 +11,7 @@
     "./limited-bytes-transform-stream": "./limited_bytes_transform_stream.ts",
     "./limited-transform-stream": "./limited_transform_stream.ts",
     "./merge-readable-streams": "./merge_readable_streams.ts",
-    "./fixed-chunk-stream": "./fixed_chunk_stream.ts",
+    "./unstable-fixed-chunk-stream": "./unstable_fixed_chunk_stream.ts",
     "./text-delimiter-stream": "./text_delimiter_stream.ts",
     "./text-line-stream": "./text_line_stream.ts",
     "./to-array-buffer": "./to_array_buffer.ts",
diff --git a/streams/mod.ts b/streams/mod.ts
index f618f924e..c64410b3d 100644
--- a/streams/mod.ts
+++ b/streams/mod.ts
@@ -26,7 +26,6 @@ export * from "./early_zip_readable_streams.ts";
 export * from "./limited_bytes_transform_stream.ts";
 export * from "./limited_transform_stream.ts";
 export * from "./merge_readable_streams.ts";
-export * from "./fixed_chunk_stream.ts";
 export * from "./text_delimiter_stream.ts";
 export * from "./text_line_stream.ts";
 export * from "./to_array_buffer.ts";
diff --git a/streams/fixed_chunk_stream.ts b/streams/unstable_fixed_chunk_stream.ts
similarity index 95%
rename from streams/fixed_chunk_stream.ts
rename to streams/unstable_fixed_chunk_stream.ts
index 97a885b73..680e00c15 100644
--- a/streams/fixed_chunk_stream.ts
+++ b/streams/unstable_fixed_chunk_stream.ts
@@ -8,7 +8,7 @@
  *
  * @example Usage
  * ```ts
- * import { FixedChunkStream } from "@std/streams/fixed-chunk-stream";
+ * import { FixedChunkStream } from "@std/streams/unstable-fixed-chunk-stream";
  * import { assertEquals } from "@std/assert/equals";
  *
  * const readable = ReadableStream.from(function* () {
diff --git a/streams/fixed_chunk_stream_test.ts b/streams/unstable_fixed_chunk_stream_test.ts
similarity index 89%
rename from streams/fixed_chunk_stream_test.ts
rename to streams/unstable_fixed_chunk_stream_test.ts
index ba68b9c40..bf03fc8df 100644
--- a/streams/fixed_chunk_stream_test.ts
+++ b/streams/unstable_fixed_chunk_stream_test.ts
@@ -1,7 +1,7 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 
 import { assert, assertLessOrEqual } from "@std/assert";
-import { FixedChunkStream } from "./fixed_chunk_stream.ts";
+import { FixedChunkStream } from "./unstable_fixed_chunk_stream.ts";
 
 Deno.test("FixedChunkStream", async () => {
   const size = 512;
diff --git a/tar/untar_stream.ts b/tar/untar_stream.ts
index 98476d95d..310e5c87e 100644
--- a/tar/untar_stream.ts
+++ b/tar/untar_stream.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
-import { FixedChunkStream } from "@std/streams";
+import { FixedChunkStream } from "@std/streams/unstable-fixed-chunk-stream";
 
 /**
  * The original tar	archive	header format.