diff --git a/src/chunks/chunks.cpp b/src/chunks/chunks.cpp
index 1e3c77c..faec406 100644
--- a/src/chunks/chunks.cpp
+++ b/src/chunks/chunks.cpp
@@ -182,7 +182,7 @@ void WriteChunk(JointToVerticesChunk *chunk, FILE *fp)
 	if (size == 0)
 		return;
 
-	fputs("JNT", fp);
+	fputs("JTV", fp);
 	fwrite(&size, sizeof(uint32_t), 1, fp);
 	uint32_t count = chunk->GetCount();
 	fwrite(&count, sizeof(uint32_t), 1, fp);