diff --git a/src/main/java/baritone/cache/CachedChunk.java b/src/main/java/baritone/cache/CachedChunk.java
index fbdd42f7b..f9a7d96b8 100644
--- a/src/main/java/baritone/cache/CachedChunk.java
+++ b/src/main/java/baritone/cache/CachedChunk.java
@@ -99,13 +99,13 @@ public final class CachedChunk implements IBlockTypeAccess {
     /**
      * The block names of each surface level block for generating an overview
      */
-    private final String[] overview;
+    private final IBlockState[] overview;
 
     private final int[] heightMap;
 
     private final Map<String, List<BlockPos>> specialBlockLocations;
 
-    CachedChunk(int x, int z, BitSet data, String[] overview, Map<String, List<BlockPos>> specialBlockLocations) {
+    CachedChunk(int x, int z, BitSet data, IBlockState[] overview, Map<String, List<BlockPos>> specialBlockLocations) {
         validateSize(data);
 
         this.x = x;
@@ -122,12 +122,11 @@ public final class CachedChunk implements IBlockTypeAccess {
         int internalPos = z << 4 | x;
         if (heightMap[internalPos] == y) {
             // we have this exact block, it's a surface block
-            IBlockState state = ChunkPacker.stringToBlock(overview[internalPos]).getDefaultState();
             /*System.out.println("Saying that " + x + "," + y + "," + z + " is " + state);
             if (!Minecraft.getMinecraft().world.getBlockState(new BlockPos(x + this.x * 16, y, z + this.z * 16)).getBlock().equals(state.getBlock())) {
                 throw new IllegalStateException("failed " + Minecraft.getMinecraft().world.getBlockState(new BlockPos(x + this.x * 16, y, z + this.z * 16)).getBlock() + " " + state.getBlock() + " " + (x + this.x * 16) + " " + y + " " + (z + this.z * 16));
             }*/
-            return state;
+            return overview[internalPos];
         }
         PathingBlockType type = getType(x, y, z);
         if (type == PathingBlockType.SOLID && y == 127 && mc.player.dimension == -1) {
@@ -157,7 +156,7 @@ public final class CachedChunk implements IBlockTypeAccess {
         }
     }
 
-    public final String[] getOverview() {
+    public final IBlockState[] getOverview() {
         return overview;
     }
 
diff --git a/src/main/java/baritone/cache/CachedRegion.java b/src/main/java/baritone/cache/CachedRegion.java
index f036f264f..7409ff38e 100644
--- a/src/main/java/baritone/cache/CachedRegion.java
+++ b/src/main/java/baritone/cache/CachedRegion.java
@@ -145,7 +145,7 @@ public final class CachedRegion implements IBlockTypeAccess {
                     for (int x = 0; x < 32; x++) {
                         if (chunks[x][z] != null) {
                             for (int i = 0; i < 256; i++) {
-                                out.writeUTF(chunks[x][z].getOverview()[i]);
+                                out.writeUTF(ChunkPacker.blockToString(chunks[x][z].getOverview()[i].getBlock()));
                             }
                         }
                     }
@@ -215,7 +215,7 @@ public final class CachedRegion implements IBlockTypeAccess {
                                 int regionZ = this.z;
                                 int chunkX = x + 32 * regionX;
                                 int chunkZ = z + 32 * regionZ;
-                                tmpCached[x][z] = new CachedChunk(chunkX, chunkZ, BitSet.valueOf(bytes), new String[256], location[x][z]);
+                                tmpCached[x][z] = new CachedChunk(chunkX, chunkZ, BitSet.valueOf(bytes), new IBlockState[256], location[x][z]);
                                 break;
                             case CHUNK_NOT_PRESENT:
                                 tmpCached[x][z] = null;
@@ -229,7 +229,7 @@ public final class CachedRegion implements IBlockTypeAccess {
                     for (int x = 0; x < 32; x++) {
                         if (tmpCached[x][z] != null) {
                             for (int i = 0; i < 256; i++) {
-                                tmpCached[x][z].getOverview()[i] = in.readUTF();
+                                tmpCached[x][z].getOverview()[i] = ChunkPacker.stringToBlock(in.readUTF()).getDefaultState();
                             }
                         }
                     }
diff --git a/src/main/java/baritone/cache/ChunkPacker.java b/src/main/java/baritone/cache/ChunkPacker.java
index 59a56f0ee..4164be3ca 100644
--- a/src/main/java/baritone/cache/ChunkPacker.java
+++ b/src/main/java/baritone/cache/ChunkPacker.java
@@ -89,7 +89,8 @@ public final class ChunkPacker implements Helper {
         }
         //long end = System.nanoTime() / 1000000L;
         //System.out.println("Chunk packing took " + (end - start) + "ms for " + chunk.x + "," + chunk.z);
-        String[] blockNames = new String[256];
+        IBlockState[] blocks = new IBlockState[256];
+
         for (int z = 0; z < 16; z++) {
             // @formatter:off
             https://www.ibm.com/developerworks/library/j-perry-writing-good-java-code/index.html
@@ -98,15 +99,14 @@ public final class ChunkPacker implements Helper {
                 for (int y = 255; y >= 0; y--) {
                     int index = CachedChunk.getPositionIndex(x, y, z);
                     if (bitSet.get(index) || bitSet.get(index + 1)) {
-                        String name = blockToString(chunk.getBlockState(x, y, z).getBlock());
-                        blockNames[z << 4 | x] = name;
+                        blocks[z << 4 | x] = chunk.getBlockState(x, y, z);
                         continue https;
                     }
                 }
-                blockNames[z << 4 | x] = "air";
+                blocks[z << 4 | x] = Blocks.AIR.getDefaultState();
             }
         }
-        return new CachedChunk(chunk.x, chunk.z, bitSet, blockNames, specialBlocks);
+        return new CachedChunk(chunk.x, chunk.z, bitSet, blocks, specialBlocks);
     }
 
     public static String blockToString(Block block) {