please clang

diff --git a/include/simgrid/kernel/resource/Action.hpp b/include/simgrid/kernel/resource/Action.hpp
index 955db66..0c819d4 100644 (file)
--- a/include/simgrid/kernel/resource/Action.hpp
+++ b/include/simgrid/kernel/resource/Action.hpp
@@ -12,6 +12,7 @@
 
 #include <boost/heap/pairing_heap.hpp>
 #include <boost/optional.hpp>
+#include <string>
 
 static constexpr int NO_MAX_DURATION = -1.0;