diff --git a/src/Commands/QueryCommitChildren.cs b/src/Commands/QueryCommitChildren.cs
index bef09abb..d1bced52 100644
--- a/src/Commands/QueryCommitChildren.cs
+++ b/src/Commands/QueryCommitChildren.cs
@@ -12,7 +12,7 @@ namespace SourceGit.Commands
             Args = $"rev-list -{max} --parents --branches --remotes ^{commit}";
         }
 
-        public IEnumerable<string> Result()
+        public List<string> Result()
         {
             Exec();
             return _lines;
diff --git a/src/ViewModels/CommitDetail.cs b/src/ViewModels/CommitDetail.cs
index a4f3f595..456e99f8 100644
--- a/src/ViewModels/CommitDetail.cs
+++ b/src/ViewModels/CommitDetail.cs
@@ -615,7 +615,7 @@ namespace SourceGit.ViewModels
                     var cmdChildren = new Commands.QueryCommitChildren(_repo.FullPath, _commit.SHA, max) { Cancel = _cancelToken };
                     var children = cmdChildren.Result();
                     if (!cmdChildren.Cancel.Requested)
-                        Dispatcher.UIThread.Post(() => Children.AddRange(children));
+                        Dispatcher.UIThread.Post(() => Children = children);
                 });
             }