diff --git a/SoObjects/Mailer/SOGoTNEFMailBodyPart.m b/SoObjects/Mailer/SOGoTNEFMailBodyPart.m
index 310457a79..0deadb171 100644
--- a/SoObjects/Mailer/SOGoTNEFMailBodyPart.m
+++ b/SoObjects/Mailer/SOGoTNEFMailBodyPart.m
@@ -40,7 +40,7 @@
 
 #import <SoObjects/Mailer/NSData+SMIME.h>
 
-#import <ytnef.h>
+#import <libytnef/ytnef.h>
 
 #import "SOGoTNEFMailBodyPart.h"