diff --git a/configurate-core/src/main/java/ninja/leaping/configurate/transformation/ConfigurationTransformation.java b/configurate-core/src/main/java/ninja/leaping/configurate/transformation/ConfigurationTransformation.java
index 1a325fb3f..c01549f63 100644
--- a/configurate-core/src/main/java/ninja/leaping/configurate/transformation/ConfigurationTransformation.java
+++ b/configurate-core/src/main/java/ninja/leaping/configurate/transformation/ConfigurationTransformation.java
@@ -16,10 +16,12 @@
  */
 package ninja.leaping.configurate.transformation;
 
+import com.google.common.collect.Iterators;
 import ninja.leaping.configurate.ConfigurationNode;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 import java.util.Arrays;
+import java.util.Iterator;
 import java.util.SortedMap;
 import java.util.TreeMap;
 
@@ -172,4 +174,36 @@ public ConfigurationTransformation build() {
             return new VersionedTransformation(versionKey, versions);
         }
     }
+
+    /**
+     * Implementation of {@link ninja.leaping.configurate.transformation.NodePath} used by this class.
+     */
+    // TODO Remove usages of this class in favour of the NodePath interface (breaking change for 4.0)
+    public static final class NodePath implements ninja.leaping.configurate.transformation.NodePath {
+        Object[] arr;
+
+        NodePath() {
+        }
+
+        @Override
+        public Object get(int i) {
+            return arr[i];
+        }
+
+        @Override
+        public int size() {
+            return arr.length;
+        }
+
+        @Override
+        public Object[] getArray() {
+            return Arrays.copyOf(arr, arr.length);
+        }
+
+        @NonNull
+        @Override
+        public Iterator<Object> iterator() {
+            return Iterators.forArray(arr);
+        }
+    }
 }
diff --git a/configurate-core/src/main/java/ninja/leaping/configurate/transformation/SingleConfigurationTransformation.java b/configurate-core/src/main/java/ninja/leaping/configurate/transformation/SingleConfigurationTransformation.java
index 237a62247..a0e78e13c 100644
--- a/configurate-core/src/main/java/ninja/leaping/configurate/transformation/SingleConfigurationTransformation.java
+++ b/configurate-core/src/main/java/ninja/leaping/configurate/transformation/SingleConfigurationTransformation.java
@@ -16,12 +16,10 @@
  */
 package ninja.leaping.configurate.transformation;
 
-import com.google.common.collect.Iterators;
 import ninja.leaping.configurate.ConfigurationNode;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 import java.util.Arrays;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
@@ -35,13 +33,13 @@ class SingleConfigurationTransformation extends ConfigurationTransformation {
     private final Map<Object[], TransformAction> actions;
 
     /**
-     * Thread local {@link NodePath} instance - used so we don't have to create lots of NodePath
+     * Thread local {@link ConfigurationTransformation.NodePath} instance - used so we don't have to create lots of NodePath
      * instances.
      *
      * As such, data within paths is only guaranteed to be the same during a run of
      * a transform function.
      */
-    private final ThreadLocal<NodePathImpl> sharedPath = ThreadLocal.withInitial(NodePathImpl::new);
+    private final ThreadLocal<ConfigurationTransformation.NodePath> sharedPath = ThreadLocal.withInitial(ConfigurationTransformation.NodePath::new);
 
     SingleConfigurationTransformation(Map<Object[], TransformAction> actions, MoveStrategy strategy) {
         this.actions = actions;
@@ -85,7 +83,7 @@ private void applySingleAction(ConfigurationNode start, Object[] path, int start
         }
 
         // apply action
-        NodePathImpl nodePath = sharedPath.get();
+        ConfigurationTransformation.NodePath nodePath = sharedPath.get();
         nodePath.arr = path;
 
         Object[] transformedPath = action.visitPath(nodePath, node);
@@ -94,35 +92,4 @@ private void applySingleAction(ConfigurationNode start, Object[] path, int start
             node.setValue(null);
         }
     }
-
-    /**
-     * Implementation of {@link NodePath} used by this class.
-     */
-    static class NodePathImpl implements NodePath {
-        Object[] arr;
-
-        NodePathImpl() {
-        }
-
-        @Override
-        public Object get(int i) {
-            return arr[i];
-        }
-
-        @Override
-        public int size() {
-            return arr.length;
-        }
-
-        @Override
-        public Object[] getArray() {
-            return Arrays.copyOf(arr, arr.length);
-        }
-
-        @NonNull
-        @Override
-        public Iterator<Object> iterator() {
-            return Iterators.forArray(arr);
-        }
-    }
 }
diff --git a/configurate-core/src/main/java/ninja/leaping/configurate/transformation/TransformAction.java b/configurate-core/src/main/java/ninja/leaping/configurate/transformation/TransformAction.java
index d4b3a23f9..f49b7e56d 100644
--- a/configurate-core/src/main/java/ninja/leaping/configurate/transformation/TransformAction.java
+++ b/configurate-core/src/main/java/ninja/leaping/configurate/transformation/TransformAction.java
@@ -37,6 +37,6 @@ public interface TransformAction {
      * @return A modified path, or null if the path is to stay the same
      */
     @Nullable
-    Object[] visitPath(@NonNull NodePath inputPath, @NonNull ConfigurationNode valueAtPath);
+    Object[] visitPath(ConfigurationTransformation.@NonNull NodePath inputPath, @NonNull ConfigurationNode valueAtPath);
 
 }
diff --git a/configurate-core/src/test/java/ninja/leaping/configurate/transformation/ConfigurationTransformationTest.java b/configurate-core/src/test/java/ninja/leaping/configurate/transformation/ConfigurationTransformationTest.java
index eef2b4736..286a7b59c 100644
--- a/configurate-core/src/test/java/ninja/leaping/configurate/transformation/ConfigurationTransformationTest.java
+++ b/configurate-core/src/test/java/ninja/leaping/configurate/transformation/ConfigurationTransformationTest.java
@@ -19,6 +19,7 @@
 import com.google.common.collect.ImmutableList;
 import ninja.leaping.configurate.ConfigurationNode;
 import ninja.leaping.configurate.SimpleConfigurationNode;
+import ninja.leaping.configurate.transformation.ConfigurationTransformation.NodePath;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.junit.Test;