diff --git a/games-simulation/corsix-th/corsix-th-9999.ebuild b/games-simulation/corsix-th/corsix-th-9999.ebuild
index edfad85e4901d..a87d3a2e459f2 100644
--- a/games-simulation/corsix-th/corsix-th-9999.ebuild
+++ b/games-simulation/corsix-th/corsix-th-9999.ebuild
@@ -21,7 +21,7 @@ else
 	S="${WORKDIR}/${MY_P}"
 
 	if [[ ${PV} != *_beta* && ${PV} != *_rc* ]] ; then
-		KEYWORDS="~amd64 ~arm64 ~x86"
+		KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
 	fi
 fi
 
@@ -68,7 +68,7 @@ BDEPEND="
 "
 
 PATCHES=(
-	"${FILESDIR}"/${PN}-0.67-cmake_lua_detection.patch
+	"${FILESDIR}"/${PN}-9999-cmake_lua_detection.patch
 )
 
 lua_enable_tests busted
diff --git a/games-simulation/corsix-th/files/corsix-th-9999-cmake_lua_detection.patch b/games-simulation/corsix-th/files/corsix-th-9999-cmake_lua_detection.patch
new file mode 100644
index 0000000000000..4ae0dbd8fe74f
--- /dev/null
+++ b/games-simulation/corsix-th/files/corsix-th-9999-cmake_lua_detection.patch
@@ -0,0 +1,26 @@
+diff --git a/CMake/GenerateDoc.cmake b/CMake/GenerateDoc.cmake
+index f8b9ec8b..ac90134d 100644
+--- a/CMake/GenerateDoc.cmake
++++ b/CMake/GenerateDoc.cmake
+@@ -19,7 +19,7 @@ endif()
+ 
+ find_program(
+   LUA_PROGRAM_PATH
+-  ${LUA_PROGRAM_NAMES}
++  lua${LUA_VERSION}
+   PATHS
+   ENV LUA_DIR
+   /opt
+diff --git a/CorsixTH/CMakeLists.txt b/CorsixTH/CMakeLists.txt
+index b0695a78..06467177 100644
+--- a/CorsixTH/CMakeLists.txt
++++ b/CorsixTH/CMakeLists.txt
+@@ -125,7 +125,7 @@ if(VCPKG_TARGET_TRIPLET)
+   target_include_directories(CorsixTH_lib PUBLIC ${LUA_INCLUDE_DIRS})
+   target_link_libraries(CorsixTH_lib PUBLIC ${LUA_LIBRARIES})
+ else()
+-  find_package(Lua REQUIRED)
++  find_package(Lua ${LUA_VERSION} EXACT REQUIRED)
+   if(Lua_FOUND OR LUA_FOUND)
+     target_link_libraries(CorsixTH_lib PUBLIC ${LUA_LIBRARY})
+     include_directories(${LUA_INCLUDE_DIR})