diff --git a/Foundation/CPDateFormatter.j b/Foundation/CPDateFormatter.j
index b7c74cbf1..59a48019d 100644
--- a/Foundation/CPDateFormatter.j
+++ b/Foundation/CPDateFormatter.j
@@ -28,6 +28,7 @@
 @import "CPLocale.j"
 
 @class CPNull
+@class CPDictionary
 
 @global CPLocaleLanguageCode
 @global CPLocaleCountryCode
diff --git a/Foundation/CPTimeZone.j b/Foundation/CPTimeZone.j
index 3d294c25f..4b4ba6c1b 100644
--- a/Foundation/CPTimeZone.j
+++ b/Foundation/CPTimeZone.j
@@ -24,6 +24,8 @@
 @import "CPDate.j"
 @import "CPLocale.j"
 
+@class CPData
+
 CPTimeZoneNameStyleStandard = 0;
 CPTimeZoneNameStyleShortStandard = 1;
 CPTimeZoneNameStyleDaylightSaving = 2;