diff --git a/apps/openmw-mp/Script/API/TimerAPI.hpp b/apps/openmw-mp/Script/API/TimerAPI.hpp
index 153ffdacd..eec896f6e 100644
--- a/apps/openmw-mp/Script/API/TimerAPI.hpp
+++ b/apps/openmw-mp/Script/API/TimerAPI.hpp
@@ -35,7 +35,7 @@ namespace mwmp
         void Start();
         void Restart(int msec);
     private:
-        long startTime, targetMsec;
+        double startTime, targetMsec;
         std::string publ, arg_types;
         std::vector<boost::any> args;
         Script *scr;