diff --git a/backend/src/main/java/com/bakdata/conquery/io/mina/ChunkWriter.java b/backend/src/main/java/com/bakdata/conquery/io/mina/ChunkWriter.java
index c5d98253cc..727ebd9e2f 100644
--- a/backend/src/main/java/com/bakdata/conquery/io/mina/ChunkWriter.java
+++ b/backend/src/main/java/com/bakdata/conquery/io/mina/ChunkWriter.java
@@ -59,7 +59,7 @@ private void newBuffer(int required) {
 
 		private void finishBuffer(boolean end) {
 			buffer.flip();
-			if (buffer.remaining() - HEADER_SIZE <= 0) {
+			if (buffer.remaining() < HEADER_SIZE) {
 				throw new IllegalStateException("Buffer of size %s is too small for header of length %s".formatted(buffer.remaining(), HEADER_SIZE));
 			}
 			buffer.put(0, end ? LAST_MESSAGE : CONTINUED_MESSAGE);