Index: src/OFObject.h
==================================================================
--- src/OFObject.h
+++ src/OFObject.h
@@ -537,11 +537,11 @@
 @property (class, readonly, nonatomic) OFString *className;
 @property (class, readonly, nullable, nonatomic) Class superclass;
 @property (class, readonly, nonatomic) OFString *description;
 # endif
 
-# ifdef __cplusplus
+# ifndef __cplusplus
 @property (readonly, nonatomic) Class class;
 # else
 @property (readonly, nonatomic, getter=class) Class class_;
 #endif
 @property OF_NULLABLE_PROPERTY (readonly, nonatomic) Class superclass;