Index: src/OFArray.m
==================================================================
--- src/OFArray.m
+++ src/OFArray.m
@@ -128,11 +128,11 @@
 {
 	id *obj;
 	size_t count;
 
 	self = [self init];
-	
+
 	count = 0;
 
 	for (obj = objs; *obj != nil; obj++) {
 		[*obj retain];
 		count++;

Index: src/OFXMLElement.m
==================================================================
--- src/OFXMLElement.m
+++ src/OFXMLElement.m
@@ -189,11 +189,11 @@
 
 	if ((namespace == nil && def_ns != nil) ||
 	    (namespace != nil && def_ns == nil) ||
 	    (namespace != nil && ![namespace isEqual: def_ns])) {
 		if ((prefix = [all_namespaces objectForKey:
-		    (namespace != nil ? namespace : @"")]) == nil)
+		    (namespace != nil ? namespace : (OFString*)@"")]) == nil)
 			@throw [OFUnboundNamespaceException
 			    newWithClass: isa
 			       namespace: namespace];
 
 		len += [prefix cStringLength] + 1;