1 files changed, 1 insertions, 1 deletions

diff --git a/sway/debug-tree.c b/sway/debug-tree.c
index 9644f4e5..16b479f9 100644
--- a/sway/debug-tree.c
+++ b/sway/debug-tree.c
@@ -120,7 +120,7 @@ static int draw_node(cairo_t *cairo, struct sway_node *node,
         return height;
 }
 
-void update_debug_tree() {
+void update_debug_tree(void) {
         if (!debug.render_tree) {
                 return;
         }