diff --git a/Pod/Classes/PNObject+Protected.h b/Pod/Classes/PNObject+Protected.h
index 093c423..b9bc086 100644
--- a/Pod/Classes/PNObject+Protected.h
+++ b/Pod/Classes/PNObject+Protected.h
@@ -8,14 +8,6 @@
 
 #import "PNObject.h"
 
-#pragma mark MappingSelector Keys
-
-extern NSString* _Nonnull const PNObjectMappingKey;
-extern NSString* _Nonnull const PNObjectMappingType;
-extern NSString* _Nonnull const PNObjectMappingSelector;
-
-#pragma mark -
-
 @interface PNObject (Protected)
 /**
  *  <#Description#>
diff --git a/Pod/Classes/PNObject+Protected.m b/Pod/Classes/PNObject+Protected.m
index e34cac1..a120dab 100644
--- a/Pod/Classes/PNObject+Protected.m
+++ b/Pod/Classes/PNObject+Protected.m
@@ -11,13 +11,7 @@
 #import <NSDate_Utils/NSDate+NSDate_Util.h>
 #import "objc/runtime.h"
 
-extern NSString* _Nonnull const PNObjectMappingKey;
-extern NSString* _Nonnull const PNObjectMappingType;
-extern NSString* _Nonnull const PNObjectMappingSelector;
 
-NSString * const PNObjectMappingKey = @"PNObjectLocalNotificationRefreshTokenClientCredentialSuccess";
-NSString * const PNObjectMappingType = @"PNObjectLocalNotificationRefreshTokenClientCredentialFail";
-NSString * const PNObjectMappingSelector = @"PNObjectLocalNotificationRefreshTokenClientCredentialFail";
 
 @implementation PNObject (Protected)
 
@@ -51,8 +45,8 @@ NSString * const PNObjectMappingSelector = @"PNObjectLocalNotificationRefreshTok
         id mappingValue = [[[self class] objcetMapping] valueForKey:propertyName];
 
         if([mappingValue isKindOfClass:NSDictionary.class]) {
-            mappedJSONKey = [mappingValue valueForKey:@"key"];
-            mappedJSONType = [mappingValue valueForKey:@"type"];
+            mappedJSONKey = [mappingValue valueForKey:PNObjectMappingKey];
+            mappedJSONType = [mappingValue valueForKey:PNObjectMappingType];
         } else {
             mappedJSONKey = mappingValue;
         }
diff --git a/Pod/Classes/PNObject.h b/Pod/Classes/PNObject.h
index 75952b6..a05f387 100644
--- a/Pod/Classes/PNObject.h
+++ b/Pod/Classes/PNObject.h
@@ -10,6 +10,14 @@
 #import "PNObjectConfig.h"
 #import "PNObjectModel.h"
 
+#pragma mark MappingSelector Keys
+
+extern NSString* _Nonnull const PNObjectMappingKey;
+extern NSString* _Nonnull const PNObjectMappingType;
+extern NSString* _Nonnull const PNObjectMappingSelector;
+
+#pragma mark -
+
 @protocol PNObjectSubclassing <NSObject>
 
 @required
diff --git a/Pod/Classes/PNObject.m b/Pod/Classes/PNObject.m
index 5d1b6d8..b43569d 100644
--- a/Pod/Classes/PNObject.m
+++ b/Pod/Classes/PNObject.m
@@ -17,6 +17,10 @@
 
 #define PNOBJECT_DIR @"PNObjects"
 
+NSString * const PNObjectMappingKey = @"key";
+NSString * const PNObjectMappingType = @"type";
+NSString * const PNObjectMappingSelector = @"selector";
+
 
 @interface PNObject() <PNObjectPersistency,PNObjectSubclassing>