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--- a/upmpd/avtransport.cxx
+++ b/upmpd/avtransport.cxx
@@ -34,6 +34,7 @@
 #include "libupnpp/soaphelp.hxx"
 #include "libupnpp/device.hxx"
 #include "libupnpp/log.hxx"
+#include "libupnpp/upnpavutils.hxx"
 
 #include "upmpd.hxx"
 #include "avtransport.hxx"