@@ -305,11 +305,11 @@
 {
 #ifdef OF_HAVE_THREADS
 	[_mutex lock];
 #endif
 	@try {
-		id *queueObjects = [_queue objects];
+		id const *queueObjects = [_queue objects];
 		int *queueInfoItems = [_queueInfo items];
 		int *queueFDsItems = [_queueFDs items];
 		size_t i, count = [_queue count];
 
 		for (i = 0; i < count; i++) {
@@ -399,11 +399,11 @@
 #endif
 }
 
 - (bool)OF_processCache
 {
-	id *objects = [_readObjects objects];
+	id const *objects = [_readObjects objects];
 	size_t i, count = [_readObjects count];
 	bool foundInCache = false;
 
 	for (i = 0; i < count; i++) {
 		if ([objects[i] isKindOfClass: [OFStream class]] &&