diff --git a/function_array_helper.h b/function_array_helper.h
index a1f735f..993354f 100644
--- a/function_array_helper.h
+++ b/function_array_helper.h
@@ -32,7 +32,10 @@
 #define LUA_INLINE ForceInline
 #endif
 
+#define LUA_NAMESPACE
+
 namespace {
+namespace LUA_NAMESPACE {
 namespace Detail {
 
 template<std::size_t N>
@@ -115,6 +118,7 @@ constexpr auto make_lua_functions_array() {
 #endif
 
 } // namespace Detail
+} // namespace LUA_NAMESPACE
 } // namespace
 
 #define GET_LUA_FUNCTIONS_ARRAY() \
diff --git a/libcard.cpp b/libcard.cpp
index 9e9a013..48cd6fd 100644
--- a/libcard.cpp
+++ b/libcard.cpp
@@ -19,6 +19,7 @@
 #include "function_array_helper.h"
 
 namespace {
+namespace LUA_NAMESPACE {
 
 using namespace scriptlib;
 
@@ -2202,6 +2203,7 @@ LUA_FUNCTION_EXISTING(GetLuaRef, get_lua_ref<card>);
 LUA_FUNCTION_EXISTING(FromLuaRef, from_lua_ref<card>);
 LUA_FUNCTION_EXISTING(IsDeleted, is_deleted_object);
 }
+}
 
 void scriptlib::push_card_lib(lua_State* L) {
 	static constexpr auto cardlib = GET_LUA_FUNCTIONS_ARRAY();
diff --git a/libdebug.cpp b/libdebug.cpp
index bbd3886..b38629f 100644
--- a/libdebug.cpp
+++ b/libdebug.cpp
@@ -13,6 +13,7 @@
 #include "function_array_helper.h"
 
 namespace {
+namespace LUA_NAMESPACE {
 
 using namespace scriptlib;
 
@@ -235,6 +236,7 @@ LUA_STATIC_FUNCTION(CardToStringWrapper) {
 	return 1;
 }
 
+}
 }
 
 void scriptlib::push_debug_lib(lua_State* L) {
diff --git a/libduel.cpp b/libduel.cpp
index f8148e4..bbab7af 100644
--- a/libduel.cpp
+++ b/libduel.cpp
@@ -19,6 +19,7 @@
 #include "function_array_helper.h"
 
 namespace {
+namespace LUA_NAMESPACE {
 
 using namespace scriptlib;
 
@@ -4181,6 +4182,7 @@ LUA_STATIC_FUNCTION(GetCardSetcodeFromCode) {
 	return static_cast<int32_t>(data.setcodes.size());
 }
 }
+}
 
 void scriptlib::push_duel_lib(lua_State* L) {
 	static constexpr auto duellib = GET_LUA_FUNCTIONS_ARRAY();
diff --git a/libeffect.cpp b/libeffect.cpp
index c098665..fb67a4a 100644
--- a/libeffect.cpp
+++ b/libeffect.cpp
@@ -14,6 +14,7 @@
 #include "function_array_helper.h"
 
 namespace {
+namespace LUA_NAMESPACE {
 
 using namespace scriptlib;
 
@@ -470,6 +471,7 @@ LUA_FUNCTION_EXISTING(GetLuaRef, get_lua_ref<effect>);
 LUA_FUNCTION_EXISTING(FromLuaRef, from_lua_ref<effect>);
 LUA_FUNCTION_EXISTING(IsDeleted, is_deleted_object);
 }
+}
 
 void scriptlib::push_effect_lib(lua_State* L) {
 	static constexpr auto effectlib = GET_LUA_FUNCTIONS_ARRAY();
diff --git a/libgroup.cpp b/libgroup.cpp
index fdad16b..1053240 100644
--- a/libgroup.cpp
+++ b/libgroup.cpp
@@ -21,6 +21,7 @@
 #include "function_array_helper.h"
 
 namespace {
+namespace LUA_NAMESPACE {
 
 using namespace scriptlib;
 
@@ -800,6 +801,7 @@ LUA_FUNCTION_EXISTING(GetLuaRef, get_lua_ref<group>);
 LUA_FUNCTION_EXISTING(FromLuaRef, from_lua_ref<group>);
 LUA_FUNCTION_EXISTING(IsDeleted, is_deleted_object);
 }
+}
 
 void scriptlib::push_group_lib(lua_State* L) {
 	static constexpr auto grouplib = GET_LUA_FUNCTIONS_ARRAY();