diff --git a/src/pc/lua/smlua.c b/src/pc/lua/smlua.c
index f93e4d22c..f4e17d372 100644
--- a/src/pc/lua/smlua.c
+++ b/src/pc/lua/smlua.c
@@ -7,7 +7,7 @@ static void smlua_exec_file(char* path) {
     lua_State* L = gLuaState;
     if (luaL_dofile(L, path) != LUA_OK) {
         LOG_LUA("LUA: Failed to load lua file '%s'.", path);
-        puts(lua_tostring(L, lua_gettop(L)));
+        puts(smlua_to_string(L, lua_gettop(L)));
     }
     lua_pop(L, lua_gettop(L));
 }
@@ -16,7 +16,7 @@ static void smlua_exec_str(char* str) {
     lua_State* L = gLuaState;
     if (luaL_dostring(L, str) != LUA_OK) {
         LOG_LUA("LUA: Failed to load lua string.");
-        puts(lua_tostring(L, lua_gettop(L)));
+        puts(smlua_to_string(L, lua_gettop(L)));
     }
     lua_pop(L, lua_gettop(L));
 }
@@ -25,7 +25,7 @@ static void smlua_load_script(char* path) {
     lua_State* L = gLuaState;
     if (luaL_loadfile(L, path) != LUA_OK) {
         LOG_LUA("LUA: Failed to load lua script '%s'.", path);
-        puts(lua_tostring(L, lua_gettop(L)));
+        puts(smlua_to_string(L, lua_gettop(L)));
         return;
     }
 
@@ -45,7 +45,7 @@ static void smlua_load_script(char* path) {
     // run chunks
     if (lua_pcall(L, 0, LUA_MULTRET, 0) != LUA_OK) {
         LOG_LUA("LUA: Failed to execute lua script '%s'.", path);
-        puts(lua_tostring(L, lua_gettop(L)));
+        puts(smlua_to_string(L, lua_gettop(L)));
         smlua_dump_stack();
         return;
     }
diff --git a/src/pc/lua/smlua_cobject.c b/src/pc/lua/smlua_cobject.c
index 2e32ab4af..0be73cdad 100644
--- a/src/pc/lua/smlua_cobject.c
+++ b/src/pc/lua/smlua_cobject.c
@@ -299,9 +299,14 @@ static struct LuaObjectField* smlua_get_object_field(struct LuaObjectTable* ot,
 }
 
 static int smlua__get_field(lua_State* L) {
-    enum LuaObjectType lot = lua_tointeger(L, -3);
-    u64 pointer = lua_tointeger(L, -2);
-    const char* key = lua_tostring(L, -1);
+    enum LuaObjectType lot = smlua_to_integer(L, 1);
+    if (!gSmLuaConvertSuccess) { return 0; }
+
+    u64 pointer = smlua_to_integer(L, 2);
+    if (!gSmLuaConvertSuccess) { return 0; }
+
+    const char* key = smlua_to_string(L, 3);
+    if (!gSmLuaConvertSuccess) { return 0; }
 
     if (pointer == 0) {
         LOG_LUA("_get_field on null pointer");
@@ -344,9 +349,14 @@ static int smlua__get_field(lua_State* L) {
 }
 
 static int smlua__set_field(lua_State* L) {
-    enum LuaObjectType lot = lua_tointeger(L, -4);
-    u64 pointer = lua_tointeger(L, -3);
-    const char* key = lua_tostring(L, -2);
+    enum LuaObjectType lot = smlua_to_integer(L, 1);
+    if (!gSmLuaConvertSuccess) { return 0; }
+
+    u64 pointer = smlua_to_integer(L, 2);
+    if (!gSmLuaConvertSuccess) { return 0; }
+
+    const char* key = smlua_to_string(L, 3);
+    if (!gSmLuaConvertSuccess) { return 0; }
 
     if (pointer == 0) {
         LOG_LUA("_set_field on null pointer");
diff --git a/src/pc/lua/smlua_hooks.c b/src/pc/lua/smlua_hooks.c
index ba7a54551..4c890600e 100644
--- a/src/pc/lua/smlua_hooks.c
+++ b/src/pc/lua/smlua_hooks.c
@@ -11,7 +11,9 @@ static struct LuaHookedEvent sHookedEvents[HOOK_MAX] = { 0 };
 
 int smlua_hook_event(lua_State* L) {
     if (L == NULL) { return 0; }
-    u16 hookType = lua_tointeger(L, -2);
+    u16 hookType = smlua_to_integer(L, -2);
+    if (!gSmLuaConvertSuccess) { return 0; }
+
     if (hookType >= HOOK_MAX) {
         LOG_LUA("LUA: Hook Type: %d exceeds max!", hookType);
         return 0;
@@ -88,8 +90,9 @@ int smlua_hook_mario_action(lua_State* L) {
     }
 
     struct LuaHookedMarioAction* hooked = &sHookedMarioActions[sHookedMarioActionsCount];
-    hooked->action = lua_tointeger(L, -2);
+    hooked->action = smlua_to_integer(L, -2);
     hooked->reference = luaL_ref(L, LUA_REGISTRYINDEX);
+    if (!gSmLuaConvertSuccess) { return 0; }
 
     sHookedMarioActionsCount++;
     return 1;
@@ -116,9 +119,11 @@ bool smlua_call_action_hook(struct MarioState* m, s32* returnValue) {
             }
 
             // output the return value
-            *returnValue = lua_tointeger(L, -1);
+            *returnValue = smlua_to_integer(L, -1);
             lua_pop(L, 1);
 
+            if (!gSmLuaConvertSuccess) { return false; }
+
             return true;
         }
     }
diff --git a/src/pc/lua/smlua_utils.c b/src/pc/lua/smlua_utils.c
index 72a61a7b6..d54a08e4d 100644
--- a/src/pc/lua/smlua_utils.c
+++ b/src/pc/lua/smlua_utils.c
@@ -41,7 +41,9 @@ void smlua_logline(void) {
 //////////////////////////////////////////////
 
 lua_Integer smlua_to_integer(lua_State* L, int index) {
-    if (lua_type(L, index) != LUA_TNUMBER) {
+    if (lua_type(L, index) == LUA_TBOOLEAN) {
+        return lua_toboolean(L, index) ? 1 : 0;
+    } else if (lua_type(L, index) != LUA_TNUMBER) {
         LOG_LUA("LUA: smlua_to_integer received improper type '%d'", lua_type(L, index));
         smlua_logline();
         gSmLuaConvertSuccess = false;
@@ -63,6 +65,17 @@ lua_Number smlua_to_number(lua_State* L, int index) {
     return lua_tonumber(L, index);
 }
 
+const char* smlua_to_string(lua_State* L, int index) {
+    if (lua_type(L, index) != LUA_TSTRING) {
+        LOG_LUA("LUA: smlua_to_string received improper type '%d'", lua_type(L, index));
+        smlua_logline();
+        gSmLuaConvertSuccess = false;
+        return 0;
+    }
+    gSmLuaConvertSuccess = true;
+    return lua_tostring(L, index);
+}
+
 void* smlua_to_cobject(lua_State* L, int index, enum LuaObjectType lot) {
     if (lua_type(L, index) != LUA_TTABLE) {
         LOG_LUA("LUA: smlua_to_cobject received improper type '%d'", lua_type(L, index));
diff --git a/src/pc/lua/smlua_utils.h b/src/pc/lua/smlua_utils.h
index 2a92ac1e5..404c7f3f0 100644
--- a/src/pc/lua/smlua_utils.h
+++ b/src/pc/lua/smlua_utils.h
@@ -11,6 +11,7 @@ void smlua_logline(void);
 
 lua_Integer smlua_to_integer(lua_State* L, int index);
 lua_Number smlua_to_number(lua_State* L, int index);
+const char* smlua_to_string(lua_State* L, int index);
 void* smlua_to_cobject(lua_State* L, int index, enum LuaObjectType lot);
 
 void smlua_push_object(lua_State* L, enum LuaObjectType lot, void* p);