diff --git a/src/ytdl_sub/entries/entry.py b/src/ytdl_sub/entries/entry.py
index 7fe44e32..9679e511 100644
--- a/src/ytdl_sub/entries/entry.py
+++ b/src/ytdl_sub/entries/entry.py
@@ -26,8 +26,8 @@ class Entry(BaseEntry, Scriptable):
         Scriptable.__init__(self)
 
         self.script.add({VARIABLES.entry_metadata.variable_name: f"{{{json.dumps(self._kwargs)}}}"})
-        self.script.add(override_variables)
-        self.script.resolve(update=True)
+        self.add(override_variables)
+        self.update_script()
 
     def get(self, variable: Variable) -> str:
         return self.script.resolve(unresolvable=self.unresolvable).get_str(variable.variable_name)
diff --git a/src/ytdl_sub/entries/script/function_scripts.py b/src/ytdl_sub/entries/script/function_scripts.py
index 939b642d..4bf3a838 100644
--- a/src/ytdl_sub/entries/script/function_scripts.py
+++ b/src/ytdl_sub/entries/script/function_scripts.py
@@ -2,6 +2,7 @@ from yt_dlp.utils import sanitize_filename
 
 from ytdl_sub.script.functions import Functions
 from ytdl_sub.script.types.map import Map
+from ytdl_sub.script.types.resolvable import AnyArgument
 from ytdl_sub.script.types.resolvable import Integer
 from ytdl_sub.script.types.resolvable import ReturnableArgument
 from ytdl_sub.script.types.resolvable import String
@@ -23,8 +24,8 @@ class CustomFunctions:
         return value
 
     @staticmethod
-    def sanitize(string: String) -> String:
-        return String(sanitize_filename(string.value))
+    def sanitize(value: AnyArgument) -> String:
+        return String(sanitize_filename(str(value)))
 
     @staticmethod
     def sanitize_plex_episode(string: String) -> String: