1 files changed, 4 insertions, 0 deletions
diff --git a/sway/container.c b/sway/container.c
index 561dcba6..73b627ec 100644
--- a/sway/container.c
+++ b/sway/container.c
@@ -18,8 +18,12 @@
 #define ASSERT_NONNULL(PTR) \
 	sway_assert (PTR, #PTR "must be non-null")
 
+
 static swayc_t *new_swayc(enum swayc_types type) {
+	// next id starts at 1 because 0 is assigned to root_container in layout.c
+	static size_t next_id = 1;
 	swayc_t *c = calloc(1, sizeof(swayc_t));
+	c->id = next_id++;
 	c->handle = -1;
 	c->gaps = -1;
 	c->layout = L_NONE;