diff --git a/autogen/lua_definitions/functions.lua b/autogen/lua_definitions/functions.lua
index 8ddceffed..95d80b6a9 100644
--- a/autogen/lua_definitions/functions.lua
+++ b/autogen/lua_definitions/functions.lua
@@ -11605,7 +11605,7 @@ function get_active_mod()
 end
 
 --- @param mod Mod
---- @param subDirectory string
+--- @param subDirectory? string
 --- @return table
 --- Gets all files a mod contains
 function get_mod_files(mod, subDirectory)
diff --git a/docs/lua/functions-7.md b/docs/lua/functions-7.md
index b3b10e893..94a807cd2 100644
--- a/docs/lua/functions-7.md
+++ b/docs/lua/functions-7.md
@@ -2104,7 +2104,7 @@ Gets all files a mod contains
 - `table`
 
 ### C Prototype
-`LuaTable get_mod_files(struct Mod* mod, const char* subDirectory);`
+`LuaTable get_mod_files(struct Mod* mod, OPTIONAL const char* subDirectory);`
 
 [:arrow_up_small:](#)
 
diff --git a/src/pc/lua/smlua_functions_autogen.c b/src/pc/lua/smlua_functions_autogen.c
index 319ee4efc..b0efdfb8c 100644
--- a/src/pc/lua/smlua_functions_autogen.c
+++ b/src/pc/lua/smlua_functions_autogen.c
@@ -34633,15 +34633,18 @@ int smlua_func_get_mod_files(lua_State* L) {
     if (L == NULL) { return 0; }
 
     int top = lua_gettop(L);
-    if (top != 2) {
-        LOG_LUA_LINE("Improper param count for '%s': Expected %u, Received %u", "get_mod_files", 2, top);
+    if (top < 1 || top > 2) {
+        LOG_LUA_LINE("Improper param count for '%s': Expected between %u and %u, Received %u", "get_mod_files", 1, 2, top);
         return 0;
     }
 
     struct Mod* mod = (struct Mod*)smlua_to_cobject(L, 1, LOT_MOD);
     if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 1, "get_mod_files"); return 0; }
-    const char* subDirectory = smlua_to_string(L, 2);
-    if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 2, "get_mod_files"); return 0; }
+    const char* subDirectory = (const char*) NULL;
+    if (top >= 2) {
+        subDirectory = smlua_to_string(L, 2);
+        if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 2, "get_mod_files"); return 0; }
+    }
 
     smlua_push_lua_table(L, get_mod_files(mod, subDirectory));
 
diff --git a/src/pc/lua/utils/smlua_misc_utils.c b/src/pc/lua/utils/smlua_misc_utils.c
index e16506914..85a86889a 100644
--- a/src/pc/lua/utils/smlua_misc_utils.c
+++ b/src/pc/lua/utils/smlua_misc_utils.c
@@ -601,7 +601,7 @@ struct Mod* get_active_mod(void) {
     return gLuaActiveMod;
 }
 
-LuaTable get_mod_files(struct Mod* mod, const char* subDirectory) {
+LuaTable get_mod_files(struct Mod* mod, OPTIONAL const char* subDirectory) {
     if (!mod || !subDirectory) {
         struct lua_State *L = gLuaState;
         if (L) {
diff --git a/src/pc/lua/utils/smlua_misc_utils.h b/src/pc/lua/utils/smlua_misc_utils.h
index a768dd96a..773fb4059 100644
--- a/src/pc/lua/utils/smlua_misc_utils.h
+++ b/src/pc/lua/utils/smlua_misc_utils.h
@@ -244,7 +244,7 @@ bool mod_file_exists(const char* filename);
 /* |description|Gets the mod currently being processed|descriptionEnd| */
 struct Mod* get_active_mod(void);
 /* |description|Gets all files a mod contains|descriptionEnd| */
-LuaTable get_mod_files(struct Mod* mod, const char* subDirectory);
+LuaTable get_mod_files(struct Mod* mod, OPTIONAL const char* subDirectory);
 
 /* |description|Sets the window title to a custom title|descriptionEnd| */
 void set_window_title(const char* title);