diff --git a/games/fifengine/Makefile b/games/fifengine/Makefile
index 860989188a8..b47c10886be 100644
--- a/games/fifengine/Makefile
+++ b/games/fifengine/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.12 2020/09/11 06:00:15 kirby Exp $
+# $OpenBSD: Makefile,v 1.13 2020/12/31 14:44:35 sthen Exp $
 
 BROKEN-powerpc =out of memory when compiling fifePYTHON_wrap.cxx
 BROKEN-sparc64 =out of memory when compiling fifePYTHON_wrap.cxx
@@ -8,6 +8,7 @@ COMMENT =	2D game engine
 GH_ACCOUNT =	fifengine
 GH_PROJECT =	fifengine
 GH_TAGNAME =	0.4.2
+REVISION =	0
 
 CATEGORIES =	games
 
diff --git a/games/fifengine/patches/patch-CMakeLists_txt b/games/fifengine/patches/patch-CMakeLists_txt
new file mode 100644
index 00000000000..4aa97879024
--- /dev/null
+++ b/games/fifengine/patches/patch-CMakeLists_txt
@@ -0,0 +1,19 @@
+$OpenBSD: patch-CMakeLists_txt,v 1.1 2020/12/31 14:44:35 sthen Exp $
+
+From d14f232f4cd9a00b05d6872957070e8c020f515d Mon Sep 17 00:00:00 2001
+From: Thomas Kowaliczek-Schmer <linuxdonald@posteo.de>
+Date: Wed, 22 May 2019 16:04:43 +0200
+Subject: [PATCH] removed flags that are not supported with swig 4.0
+
+Index: CMakeLists.txt
+--- CMakeLists.txt.orig
++++ CMakeLists.txt
+@@ -897,7 +897,7 @@ if(build-python)
+   find_package(PythonLibs ${PYTHON_VERSION_STRING} EXACT)
+   include_directories(${PYTHON_INCLUDE_PATH})
+ 
+-  set(CMAKE_SWIG_FLAGS -modern -fastdispatch -dirvtable -nosafecstrings -noproxydel -fastproxy -fastinit -fastunpack -fastquery -modernargs -nobuildnone -keyword -w511 -w473 -w404 -w314)
++  set(CMAKE_SWIG_FLAGS -modern -fastdispatch -dirvtable -noproxydel -fastproxy -fastinit -fastunpack -fastquery -modernargs -keyword -w511 -w473 -w404 -w314)
+ 
+   set_source_files_properties("${PROJECT_BINARY_DIR}/fife.i" PROPERTIES CPLUSPLUS ON)
+   set(FIFE_SOURCES ${FIFE_CORE_SRC})