diff --git a/app/src/main/java/com/android/grape/util/Util.kt b/app/src/main/java/com/android/grape/util/Util.kt
index c9f57c5..fe2fa9e 100644
--- a/app/src/main/java/com/android/grape/util/Util.kt
+++ b/app/src/main/java/com/android/grape/util/Util.kt
@@ -762,7 +762,7 @@ object Util {
                     execSetJson(context)
                     clickTime = 1
                 } else {
-                    LogUtils.i(TAG, "request result code invalid : "+code);
+                    LogUtils.i(TAG, "request result code invalid : $code");
                     setFinish(context)
                 }
             } else {