@@ -18,10 +18,12 @@
 
 #import "OFEnumerationMutationException.h"
 #import "OFString.h"
 
 #import "OFNotImplementedException.h"
+
+#import "common.h"
 
 @implementation OFEnumerationMutationException
 + exceptionWithClass: (Class)class_
 	      object: (id)object
 {