diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/CacheRepository.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/CacheRepository.java
index 48076895e..61e844966 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/CacheRepository.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/CacheRepository.java
@@ -263,7 +263,7 @@ public class CacheRepository {
         try (RandomAccessFile file = new RandomAccessFile(indexFile.toFile(), "rw"); FileChannel channel = file.getChannel()) {
             FileLock lock = channel.lock();
             try {
-                ETagIndex indexOnDisk = JsonUtils.GSON.fromJson(new String(IOUtils.readFullyWithoutClosing(Channels.newInputStream(channel)), UTF_8), ETagIndex.class);
+                ETagIndex indexOnDisk = JsonUtils.fromMaybeMalformedJson(new String(IOUtils.readFullyWithoutClosing(Channels.newInputStream(channel)), UTF_8), ETagIndex.class);
                 Map<String, ETagItem> newIndex = joinETagIndexes(indexOnDisk == null ? null : indexOnDisk.eTag, index.values());
                 channel.truncate(0);
                 OutputStream os = Channels.newOutputStream(channel);
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/gson/JsonUtils.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/gson/JsonUtils.java
index 03590acee..3a457a093 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/gson/JsonUtils.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/gson/JsonUtils.java
@@ -24,6 +24,7 @@ import java.util.UUID;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonParseException;
+import com.google.gson.JsonSyntaxException;
 
 /**
  * @author yushijinhun
@@ -49,4 +50,12 @@ public final class JsonUtils {
             throw new JsonParseException("Json object cannot be null.");
         return parsed;
     }
+
+    public static <T> T fromMaybeMalformedJson(String json, Class<T> classOfT) throws JsonParseException {
+        try {
+            return GSON.fromJson(json, classOfT);
+        } catch (JsonSyntaxException e) {
+            return null;
+        }
+    }
 }