diff --git a/Bonk/BroadPhase/SpatialHash.cs b/Bonk/BroadPhase/SpatialHash.cs
index 37d4ef6..0b2982a 100644
--- a/Bonk/BroadPhase/SpatialHash.cs
+++ b/Bonk/BroadPhase/SpatialHash.cs
@@ -42,7 +42,7 @@ namespace MoonTools.Core.Bonk
             {
                 for (var j = minHash.Item2; j <= maxHash.Item2; j++)
                 {
-                    var key = LongHelper.MakeLong(i, j);
+                    var key = MakeLong(i, j);
                     if (!hashDictionary.ContainsKey(key))
                     {
                         hashDictionary.Add(key, new HashSet<T>());
@@ -67,7 +67,7 @@ namespace MoonTools.Core.Bonk
             {
                 for (int j = minHash.Item2; j <= maxHash.Item2; j++)
                 {
-                    var key = LongHelper.MakeLong(i, j);
+                    var key = MakeLong(i, j);
                     if (hashDictionary.ContainsKey(key))
                     {
                         foreach (var t in hashDictionary[key])
@@ -92,5 +92,10 @@ namespace MoonTools.Core.Bonk
 
             IDLookup.Clear();
         }
+
+        private static long MakeLong(int left, int right)
+        {
+            return ((long)left << 32) | ((uint)right);
+        }
     }
 }
diff --git a/Bonk/LongHelper.cs b/Bonk/LongHelper.cs
deleted file mode 100644
index f3277a3..0000000
--- a/Bonk/LongHelper.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace MoonTools.Core.Bonk
-{
-    public static class LongHelper
-    {
-        public static long MakeLong(int left, int right)
-        {
-            return ((long)left << 32) | ((uint)right);
-        }
-    }
-}