diff --git a/app/src/main/java/com/fongmi/android/tv/bean/Episode.java b/app/src/main/java/com/fongmi/android/tv/bean/Episode.java
index 8a806e1c1..04a1c19e5 100644
--- a/app/src/main/java/com/fongmi/android/tv/bean/Episode.java
+++ b/app/src/main/java/com/fongmi/android/tv/bean/Episode.java
@@ -34,7 +34,7 @@ public class Episode implements Parcelable, Diffable<Episode> {
     }
 
     private Episode(String name, String desc, String url) {
-        this.number = Util.getDigit(name);
+        this.number = Util.getNumber(name);
         this.name = name;
         this.desc = desc;
         this.url = url;
diff --git a/app/src/main/java/com/fongmi/android/tv/bean/Flag.java b/app/src/main/java/com/fongmi/android/tv/bean/Flag.java
index bbc7022a4..74ec2800a 100644
--- a/app/src/main/java/com/fongmi/android/tv/bean/Flag.java
+++ b/app/src/main/java/com/fongmi/android/tv/bean/Flag.java
@@ -108,7 +108,7 @@ public class Flag implements Parcelable, Diffable<Flag> {
     public Episode find(String remarks, boolean strict) {
         if (getEpisodes().isEmpty()) return null;
         if (getEpisodes().size() == 1) return getEpisodes().get(0);
-        int number = Util.getDigit(remarks);
+        int number = Util.getNumber(remarks);
         return getEpisodes().stream()
                 .map(episode -> new Episode.Rule(episode, episode.getScore(remarks, number)))
                 .filter(Episode.Rule::find).max(Comparator.comparingInt(Episode.Rule::score)).map(Episode.Rule::episode)
diff --git a/app/src/main/java/com/fongmi/android/tv/utils/Util.java b/app/src/main/java/com/fongmi/android/tv/utils/Util.java
index 9d30de10d..2a1b4ee2b 100644
--- a/app/src/main/java/com/fongmi/android/tv/utils/Util.java
+++ b/app/src/main/java/com/fongmi/android/tv/utils/Util.java
@@ -105,15 +105,15 @@ public class Util {
         }
     }
 
-    public static int getDigit(String text) {
+    public static int getNumber(String text) {
         try {
             text = text.replaceAll("\\[.*?\\]|\\(.*?\\)", "");
             text = text.replaceAll("\\b(19|20)\\d{2}\\b", "");
             text = text.toLowerCase().replaceAll("2160p|1080p|720p|480p|4k|h26[45]|x26[45]|mp4", "");
             Matcher matcher = EPISODE.matcher(text);
             if (matcher.find()) return Integer.parseInt(matcher.group(1));
-            String digit = text.replaceAll("\\D+", "");
-            return digit.isEmpty() ? -1 : Integer.parseInt(digit);
+            String number = text.replaceAll("\\D+", "");
+            return number.isEmpty() ? -1 : Integer.parseInt(number);
         } catch (Exception e) {
             return -1;
         }