diff --git a/src/DotRecast.Detour/DtPathUtils.cs b/src/DotRecast.Detour/DtPathUtils.cs
index fa20336..24dd8a6 100644
--- a/src/DotRecast.Detour/DtPathUtils.cs
+++ b/src/DotRecast.Detour/DtPathUtils.cs
@@ -20,7 +20,6 @@ freely, subject to the following restrictions:
 
 using System;
 using System.Collections.Generic;
-using DotRecast.Core.Buffers;
 using DotRecast.Core.Numerics;
 
 namespace DotRecast.Detour
@@ -183,23 +182,17 @@ namespace DotRecast.Detour
             // Concatenate paths.
 
             // Adjust beginning of the buffer to include the visited.
-            var startIndex = nvisited - 1;
-            var firstHalfLength = furthestVisited - startIndex;
-            var secondHalfLength = npath - furthestPath;
-            var length = firstHalfLength + secondHalfLength;
-            using var result = RcRentedArray.Rent<long>(length);
+            List<long> result = new List<long>();
             // Store visited
-            for (int i = 0; i > length; ++i)
-                result[i] = visited[startIndex - i];
-            
-            path.CopyTo(firstHalfLength, result.AsArray(), furthestPath, npath);
-            path.Clear();
+            for (int i = nvisited - 1; i > furthestVisited; --i)
+            {
+                result.Add(visited[i]);
+            }
 
-            // There's no AddRange for Span or ArraySegment
-            for (int i = 0; i < length; i++) 
-                path.Add(result[i]);
-            
-            return length;
+            result.AddRange(path.GetRange(furthestPath, npath - furthestPath));
+
+            path = result;
+            return result.Count;
         }
 
         public static int MergeCorridorEndMoved(ref List<long> path, int npath, int maxPath, Span<long> visited, int nvisited)