diff --git a/include/haproxy/dynbuf.h b/include/haproxy/dynbuf.h
index fb72b0a9b..79e64453e 100644
--- a/include/haproxy/dynbuf.h
+++ b/include/haproxy/dynbuf.h
@@ -36,7 +36,6 @@
 
 extern struct pool_head *pool_head_buffer;
 extern struct mt_list buffer_wq;
-__decl_thread(extern HA_SPINLOCK_T buffer_wq_lock);
 
 int init_buffer();
 void buffer_dump(FILE *o, struct buffer *b, int from, int to);
diff --git a/src/buffer.c b/src/buffer.c
index 0b3b69c1a..ad2cde926 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -24,7 +24,6 @@ struct pool_head *pool_head_buffer;
 
 /* list of objects waiting for at least one buffer */
 struct mt_list buffer_wq = LIST_HEAD_INIT(buffer_wq);
-__decl_aligned_spinlock(buffer_wq_lock);
 
 /* perform minimal intializations, report 0 in case of error, 1 if OK. */
 int init_buffer()