diff --git a/java11/src/main/java/feign/http2client/Http2Client.java b/java11/src/main/java/feign/http2client/Http2Client.java
index aca905c82..510b5e357 100644
--- a/java11/src/main/java/feign/http2client/Http2Client.java
+++ b/java11/src/main/java/feign/http2client/Http2Client.java
@@ -128,7 +128,7 @@ protected Response toFeignResponse(Request request, HttpResponse<byte[]> httpRes
         .body(
             new ByteArrayInputStream(httpResponse.body()),
             length.isPresent() ? (int) length.getAsLong() : null)
-        .reason(httpResponse.headers().firstValue("Reason-Phrase").orElse("OK"))
+        .reason(httpResponse.headers().firstValue("Reason-Phrase").orElse(null))
         .request(request)
         .status(httpResponse.statusCode())
         .headers(castMapCollectType(httpResponse.headers().map()))
diff --git a/java11/src/test/java/feign/http2client/test/Http2ClientTest.java b/java11/src/test/java/feign/http2client/test/Http2ClientTest.java
index 923935efd..c998b97dd 100644
--- a/java11/src/test/java/feign/http2client/test/Http2ClientTest.java
+++ b/java11/src/test/java/feign/http2client/test/Http2ClientTest.java
@@ -1,5 +1,5 @@
 /**
- * Copyright 2012-2020 The Feign Authors
+ * Copyright 2012-2021 The Feign Authors
  *
  * <p>Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
  * except in compliance with the License. You may obtain a copy of the License at
@@ -64,6 +64,20 @@ public void noResponseBodyForPatch() {
   @Override
   @Test
   public void reasonPhraseIsOptional() throws IOException, InterruptedException {
+    server.enqueue(new MockResponse().setStatus("HTTP/1.1 " + 200));
+
+    final AbstractClientTest.TestInterface api =
+        newBuilder()
+            .target(AbstractClientTest.TestInterface.class, "http://localhost:" + server.getPort());
+
+    final Response response = api.post("foo");
+
+    assertThat(response.status()).isEqualTo(200);
+    assertThat(response.reason()).isNull();
+  }
+
+  @Test
+  public void reasonPhraseInHeader() throws IOException, InterruptedException {
     server.enqueue(
         new MockResponse()
             .addHeader("Reason-Phrase", "There is A reason")