diff --git a/multimedia/opentoonz/files/patch-toonz_sources_include_tcg_poly__ops.h b/multimedia/opentoonz/files/patch-toonz_sources_include_tcg_poly__ops.h
new file mode 100644
index 000000000000..a1afa7634ddd
--- /dev/null
+++ b/multimedia/opentoonz/files/patch-toonz_sources_include_tcg_poly__ops.h
@@ -0,0 +1,10 @@
+--- toonz/sources/include/tcg/poly_ops.h	2021-12-14 00:11:14.717028000 +0300
++++ toonz/sources/include/tcg/poly_ops.h	2021-12-14 00:11:39.304315000 +0300
+@@ -5,6 +5,7 @@
+ 
+ // tcg includes
+ #include "macros.h"
++#include <algorithm>
+ 
+ /*!
+   \file     tcg_poly_ops.h