diff --git a/SOPE/NGCards/NSString+NGCards.m b/SOPE/NGCards/NSString+NGCards.m
index 768009d27..eb0c4e421 100644
--- a/SOPE/NGCards/NSString+NGCards.m
+++ b/SOPE/NGCards/NSString+NGCards.m
@@ -21,6 +21,7 @@
  */
 
 #import <Foundation/NSArray.h>
+#import <Foundation/NSCalendarDate.h>
 #import <Foundation/NSRange.h>
 #import <Foundation/NSTimeZone.h>
 #import <NGExtensions/NSObject+Logs.h>