1 files changed, 4 insertions, 1 deletions

diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
index 2735daa3..5e281a2f 100644
--- a/include/sway/tree/container.h
+++ b/include/sway/tree/container.h
@@ -279,8 +279,11 @@ void container_add_child(struct sway_container *parent,
 void container_insert_child(struct sway_container *parent,
                 struct sway_container *child, int i);
 
+/**
+ * Side should be 0 to add before, or 1 to add after.
+ */
 void container_add_sibling(struct sway_container *parent,
-                struct sway_container *child);
+                struct sway_container *child, bool after);
 
 void container_detach(struct sway_container *child);