diff --git a/config.yaml b/config.yaml
index 1ee3987..8ec5ef0 100644
--- a/config.yaml
+++ b/config.yaml
@@ -79,7 +79,7 @@ operators:
       viewport_right: 0
       viewport_top: 0
     index.html:
-      fallback_name: char_2015_dusk_nian#7
+      fallback_name: char_2015_dusk_nian%237
       id: char_2015_dusk_nian%237
       operator_logo: logo_sui
       title: 'Arknights: Everything is a Miracle / Dusk - 明日方舟：染尘烟·夕'
@@ -203,7 +203,7 @@ operators:
       viewport_right: 0
       viewport_top: 0
     index.html:
-      fallback_name: char_2014_nian_nian#4
+      fallback_name: char_2014_nian_nian%234
       id: char_2014_nian_nian%234
       operator_logo: logo_sui
       title: 'Arknights: Unfettered Freedom / Nian - 明日方舟：乐逍遥·年'
diff --git a/lib/builder.py b/lib/builder.py
index add9e19..ddaad3f 100644
--- a/lib/builder.py
+++ b/lib/builder.py
@@ -68,7 +68,7 @@ class Builder:
             source=self.config["operator"]["source_folder"].format(name=operator_name),
             target=self.config["operator"]["target_folder"].format(name=operator_name),
             common_name=self.config["operators"][operator_name]["_operator_settings.js"]["filename"],
-            fallback_name=self.config["operators"][operator_name]["index.html"]["fallback_name"],
+            fallback_name=self.config["operators"][operator_name]["index.html"]["fallback_name"].replace("%23", "#"),
             id_name=self.config["operators"][operator_name]["index.html"]["id"].replace("%23", "#")
         )