diff --git a/lib_faceunity/src/main/java/io/agora/beautyapi/faceunity/agora/SWAuManager.java b/lib_faceunity/src/main/java/io/agora/beautyapi/faceunity/agora/SWAuManager.java
index 7a6c7afe8..3ac3ec00f 100644
--- a/lib_faceunity/src/main/java/io/agora/beautyapi/faceunity/agora/SWAuManager.java
+++ b/lib_faceunity/src/main/java/io/agora/beautyapi/faceunity/agora/SWAuManager.java
@@ -354,7 +354,7 @@ public class SWAuManager extends BaseCacheManager {
     }
 
     public static String getChannelName(String liveUid) {
-        if (liveUid.contains("g")) {
+        if ( liveUid != null &&liveUid.contains("g")) {
             return liveUid;
         } else {
             return CommonAppConfig.SWChannelPrefix + liveUid;