--- a/libupnpp/control/avlastchg.hxx
+++ b/libupnpp/control/avlastchg.hxx
@@ -17,6 +17,9 @@
#ifndef _AVLASTCHG_H_X_INCLUDED_
#define _AVLASTCHG_H_X_INCLUDED_
+#include <string> // for string
+#include <unordered_map> // for unordered_map
+
namespace UPnPClient {
/** Decoding AV LastChange data
* <Event xmlns="urn:schemas-upnp-org:metadata-1-0/AVT_RCS">
@@ -26,8 +29,8 @@
* </InstanceID>
* </Event>
*/
-extern bool decodeAVLastChange(const string& xml,
- unordered_map<string, string>& props);
+extern bool decodeAVLastChange(const std::string& xml,
+ std::unordered_map<std::string, std::string>& props);
} // namespace UPnPClient