2 files changed, 4 insertions, 2 deletions

diff --git a/include/sway/output.h b/include/sway/output.h
index bd25e76e..b6cda83c 100644
--- a/include/sway/output.h
+++ b/include/sway/output.h
@@ -97,6 +97,4 @@ void output_drag_icons_for_each_surface(struct wl_list *drag_icons,
         struct sway_output *output, struct root_geometry *geo,
         wlr_surface_iterator_func_t iterator, void *user_data);
 
-struct sway_container *output_get_active_workspace(struct sway_output *output);
-
 #endif
diff --git a/sway/tree/container.c b/sway/tree/container.c
index 2df2332c..92408ce6 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -1052,6 +1052,10 @@ static struct sway_container *container_floating_find_output(
 
 void container_floating_move_to(struct sway_container *con,
                 double lx, double ly) {
+        if (!sway_assert(container_is_floating(con),
+                        "Expected a floating container")) {
+                return;
+        }
         desktop_damage_whole_container(con);
         container_floating_translate(con, lx - con->x, ly - con->y);
         desktop_damage_whole_container(con);