diff --git a/src/branches2.hpp b/src/branches2.hpp
index 3d320265..e43282a3 100644
--- a/src/branches2.hpp
+++ b/src/branches2.hpp
@@ -2,7 +2,7 @@
 
 #include <vector>
 
-class Branch2Vec
+class Branch2Group
 {
 public:
   uint64_t min_free_space;