diff --git a/modules/swagger-codegen/src/main/resources/objc/Configuration-header.mustache b/modules/swagger-codegen/src/main/resources/objc/Configuration-header.mustache
index 56e9fcaecd5..6b311e968b0 100644
--- a/modules/swagger-codegen/src/main/resources/objc/Configuration-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/objc/Configuration-header.mustache
@@ -2,8 +2,8 @@
 
 /** The `{{classPrefix}}Configuration` class manages the configurations for the sdk.
  *
- * NOTE: This class is auto generated by the swagger code generator program. 
- * https://github.com/swagger-api/swagger-codegen 
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen
  * Do not edit the class manually.
  */
 @interface {{classPrefix}}Configuration : NSObject
@@ -41,14 +41,14 @@
 /**
  * Logging Settings
  */
-  
+
 /**
  * Debug switch, default false
  */
 @property (nonatomic) BOOL debug;
 
 /**
- * Debug file location, default nil
+ * Debug file location, default log in console
  */
 @property (nonatomic) NSString *loggingFile;
 
diff --git a/samples/client/petstore/objc/SwaggerClient/SWGConfiguration.h b/samples/client/petstore/objc/SwaggerClient/SWGConfiguration.h
index 4b7f318b5ec..0ccbe0cd8f6 100644
--- a/samples/client/petstore/objc/SwaggerClient/SWGConfiguration.h
+++ b/samples/client/petstore/objc/SwaggerClient/SWGConfiguration.h
@@ -2,8 +2,8 @@
 
 /** The `SWGConfiguration` class manages the configurations for the sdk.
  *
- * NOTE: This class is auto generated by the swagger code generator program. 
- * https://github.com/swagger-api/swagger-codegen 
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen
  * Do not edit the class manually.
  */
 @interface SWGConfiguration : NSObject
@@ -41,14 +41,14 @@
 /**
  * Logging Settings
  */
-  
+
 /**
  * Debug switch, default false
  */
 @property (nonatomic) BOOL debug;
 
 /**
- * Debug file location, default nil
+ * Debug file location, default log in console
  */
 @property (nonatomic) NSString *loggingFile;