diff --git a/src/main/java/net/geedge/api/util/AdbUtil.java b/src/main/java/net/geedge/api/util/AdbUtil.java
index 21b7ed5..b8aecce 100644
--- a/src/main/java/net/geedge/api/util/AdbUtil.java
+++ b/src/main/java/net/geedge/api/util/AdbUtil.java
@@ -864,9 +864,9 @@ public class AdbUtil {
     }
 
     public CommandResult execPlaybook(String playbookPath) {
-        log.info("[execPlaybook] [begin!]");
+        log.info("[execPlaybook] [begin!] [serial:{}]", this.getSerial());
         Process process = CommandExec.execForProcess(new AdbCommandBuilder("airtest")
-                .buildRunPlaybook(playbookPath, this.serial)
+                .buildRunPlaybook(playbookPath, this.getSerial())
                 .build());
 
         ExecutorService executor = Executors.newSingleThreadExecutor();