diff --git a/modules/demux/adaptative/tools/Conversions.hpp b/modules/demux/adaptative/tools/Conversions.hpp
index 5634a8f8dd9a9a9e7488a9ec83f68d66af96e8c4..542629cdf67be575eca2c3fe55ae9a19db64897a 100644
--- a/modules/demux/adaptative/tools/Conversions.hpp
+++ b/modules/demux/adaptative/tools/Conversions.hpp
@@ -26,6 +26,7 @@
 
 #include <vlc_common.h>
 #include <string>
+#include <sstream>
 
 class IsoTime
 {