diff --git a/src/add-ons/kernel/file_systems/bfs/BPlusTree.h b/src/add-ons/kernel/file_systems/bfs/BPlusTree.h
index cfc4aac9a1..95bc7bb9b6 100644
--- a/src/add-ons/kernel/file_systems/bfs/BPlusTree.h
+++ b/src/add-ons/kernel/file_systems/bfs/BPlusTree.h
@@ -152,8 +152,6 @@ class TreeIterator;
 
 
 #if !_BOOT_MODE
-template<class T> class Stack;
-
 // needed for searching (utilizing a stack)
 struct node_and_key {
 	off_t	nodeOffset;