Index: src/OFString.m
==================================================================
--- src/OFString.m
+++ src/OFString.m
@@ -55,10 +55,15 @@
 	_OFString_Serialization_reference = 1;
 	_OFString_URLEncoding_reference = 1;
 	_OFString_XMLEscaping_reference = 1;
 	_OFString_XMLUnescaping_reference = 1;
 }
+
+void _reference_to_OFConstantString(void)
+{
+	[OFConstantString class];
+}
 
 int
 of_string_check_utf8(const char *cString, size_t cStringLength, size_t *length)
 {
 	size_t i, tmpLength = cStringLength;