X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2daf04fb944713dcd1bbf1070d11b9d7bb77c8d4..06bb77be33c8d02b792f74e0a87110e3b0989c50:/include/simgrid/s4u/Activity.hpp

diff --git a/include/simgrid/s4u/Activity.hpp b/include/simgrid/s4u/Activity.hpp
index 6cd6276393..cb8bcc8e24 100644
--- a/include/simgrid/s4u/Activity.hpp
+++ b/include/simgrid/s4u/Activity.hpp
@@ -7,6 +7,7 @@
 #define SIMGRID_S4U_ACTIVITY_HPP
 
 #include <simgrid/forward.h>
+#include <xbt/signal.hpp>
 
 namespace simgrid {
 namespace s4u {