@@ -119,13 +119,13 @@
 	void (*SIGUSR2Handler)(id, SEL);
 #endif
 }
 
 #ifdef OF_HAVE_PROPERTIES
-@property (readonly, assign) OFString *programName;
-@property (readonly, assign) OFArray *arguments;
-@property (readonly, assign) OFDictionary *environment;
+@property (readonly, copy, nonatomic) OFString *programName;
+@property (readonly, copy, nonatomic) OFArray *arguments;
+@property (readonly, copy, nonatomic) OFDictionary *environment;
 @property (assign) id <OFApplicationDelegate> delegate;
 #endif
 
 /**
  * \brief Returns the only OFApplication instance in the application.