diff --git a/src/main/java/systems/crigges/jmpq3/JMpqEditor.java b/src/main/java/systems/crigges/jmpq3/JMpqEditor.java
index def2404..21ef2d2 100644
--- a/src/main/java/systems/crigges/jmpq3/JMpqEditor.java
+++ b/src/main/java/systems/crigges/jmpq3/JMpqEditor.java
@@ -811,6 +811,8 @@ public void close(boolean buildListfile, boolean buildAttributes, boolean recomp
         // currentPos += newBlock.getCompressedSize();
         // }
 
+        newBlockSize = newBlocks.size();
+
         newHashPos = currentPos - (keepHeaderOffset ? headerOffset : 0);
         newBlockPos = newHashPos + newHashSize * 16;