diff --git a/pkgs/http_profile/lib/src/http_profile_request_data.dart b/pkgs/http_profile/lib/src/http_profile_request_data.dart
index 537643cc2c..60b1d8e8fe 100644
--- a/pkgs/http_profile/lib/src/http_profile_request_data.dart
+++ b/pkgs/http_profile/lib/src/http_profile_request_data.dart
@@ -55,6 +55,9 @@ final class HttpProfileRequestData {
       _data['requestData'] as Map<String, dynamic>;
 
   /// A sink that can be used to record the body of the request.
+  ///
+  /// Errors added to [bodySink] (for example with [StreamSink.addError]) are
+  /// ignored.
   StreamSink<List<int>> get bodySink => _body.sink;
 
   /// The body of the request represented as an unmodifiable list of bytes.
diff --git a/pkgs/http_profile/lib/src/http_profile_response_data.dart b/pkgs/http_profile/lib/src/http_profile_response_data.dart
index 8cf0f682d6..920b97d601 100644
--- a/pkgs/http_profile/lib/src/http_profile_response_data.dart
+++ b/pkgs/http_profile/lib/src/http_profile_response_data.dart
@@ -62,6 +62,9 @@ final class HttpProfileResponseData {
           .map(HttpProfileRedirectData._fromJson));
 
   /// A sink that can be used to record the body of the response.
+  ///
+  /// Errors added to [bodySink] (for example with [StreamSink.addError]) are
+  /// ignored.
   StreamSink<List<int>> get bodySink => _body.sink;
 
   /// The body of the response represented as an unmodifiable list of bytes.
diff --git a/pkgs/http_profile/test/http_profile_request_data_test.dart b/pkgs/http_profile/test/http_profile_request_data_test.dart
index 36c79a766f..500cd95f52 100644
--- a/pkgs/http_profile/test/http_profile_request_data_test.dart
+++ b/pkgs/http_profile/test/http_profile_request_data_test.dart
@@ -348,9 +348,11 @@ void main() {
     expect(profile.requestData.bodyBytes, isEmpty);
 
     profile.requestData.bodySink.add([1, 2, 3]);
+    profile.requestData.bodySink.addError('this is an error');
+    profile.requestData.bodySink.add([4, 5]);
     await profile.requestData.close();
 
-    expect(requestBodyBytes, [1, 2, 3]);
-    expect(profile.requestData.bodyBytes, [1, 2, 3]);
+    expect(requestBodyBytes, [1, 2, 3, 4, 5]);
+    expect(profile.requestData.bodyBytes, [1, 2, 3, 4, 5]);
   });
 }
diff --git a/pkgs/http_profile/test/http_profile_response_data_test.dart b/pkgs/http_profile/test/http_profile_response_data_test.dart
index 9b73cb7b38..a9bc9a827c 100644
--- a/pkgs/http_profile/test/http_profile_response_data_test.dart
+++ b/pkgs/http_profile/test/http_profile_response_data_test.dart
@@ -392,9 +392,11 @@ void main() {
     expect(profile.responseData.bodyBytes, isEmpty);
 
     profile.responseData.bodySink.add([1, 2, 3]);
+    profile.responseData.bodySink.addError('this is an error');
+    profile.responseData.bodySink.add([4, 5]);
     await profile.responseData.close();
 
-    expect(responseBodyBytes, [1, 2, 3]);
-    expect(profile.responseData.bodyBytes, [1, 2, 3]);
+    expect(responseBodyBytes, [1, 2, 3, 4, 5]);
+    expect(profile.responseData.bodyBytes, [1, 2, 3, 4, 5]);
   });
 }