diff --git a/include/simulator/chrono.hpp b/include/simulator/chrono.hpp
index 90b3ef9..c84c338 100644
--- a/include/simulator/chrono.hpp
+++ b/include/simulator/chrono.hpp
@@ -78,8 +78,7 @@ namespace sim { namespace chrono
 		static void fast_forward(high_resolution_clock::duration d);
 	};
 
-	// private interface
-	void reset_clock();
+	SIMULATOR_DECL void reset_clock();
 
 } // chrono
 } // sim