diff --git a/include/sway/tree/output.h b/include/sway/tree/output.h
deleted file mode 100644
index e69de29bb..000000000
diff --git a/sway/tree/output.c b/sway/tree/output.c
index 5a992f2db..138144a77 100644
--- a/sway/tree/output.c
+++ b/sway/tree/output.c
@@ -8,7 +8,6 @@
 #include "sway/layers.h"
 #include "sway/output.h"
 #include "sway/tree/arrange.h"
-#include "sway/tree/output.h"
 #include "sway/tree/workspace.h"
 #include "log.h"
 #include "util.h"