@@ -246,11 +246,11 @@
 	return [self retain];
 }
 
 - (id)mutableCopy
 {
-	return [OFMutableString stringWithCString: string];
+	return [[OFMutableString alloc] initWithCString: string];
 }
 
 - (BOOL)isEqual: (id)obj
 {
 	if (![obj isKindOf: [OFString class]])