Fix compilation

diff --git a/include/simgrid/s4u/engine.hpp b/include/simgrid/s4u/engine.hpp
index 046eea7..bee4afa 100644 (file)
--- a/include/simgrid/s4u/engine.hpp
+++ b/include/simgrid/s4u/engine.hpp
@@ -59,7 +59,7 @@ public:
   simgrid::s4u::As *asByNameOrNull(const char *name);
 
 private:
   simgrid::s4u::As *asByNameOrNull(const char *name);
 
 private:

-  static s4u::Engine *instance_ = nullptr;
+  static s4u::Engine *instance_;

 };
 }} // namespace simgrid::s4u
 
 };
 }} // namespace simgrid::s4u