diff --git a/laf b/laf
index 1f266c766..c550d2058 160000
--- a/laf
+++ b/laf
@@ -1 +1 @@
-Subproject commit 1f266c766b0afb6834c7fbefd919c20ce1723ccc
+Subproject commit c550d2058adcb15a05fd98d35fdd37b7361231d3
diff --git a/src/doc/algorithm/polygon.cpp b/src/doc/algorithm/polygon.cpp
index 4c23ec408..33f90041b 100644
--- a/src/doc/algorithm/polygon.cpp
+++ b/src/doc/algorithm/polygon.cpp
@@ -1,5 +1,5 @@
 // Aseprite Document Library
-// Copyright (c) 2019 Igara Studio S.A.
+// Copyright (c) 2019-2020 Igara Studio S.A.
 // Copyright (c) 2001-2014 David Capello
 //
 // This file is released under the terms of the MIT license.
@@ -9,6 +9,7 @@
 #include "config.h"
 #endif
 
+#include "base/debug.h"
 #include "doc/algo.h"
 #include "doc/algorithm/polygon.h"