diff --git a/cpptime.h b/cpptime.h
index 8bd55e7..901381c 100644
--- a/cpptime.h
+++ b/cpptime.h
@@ -288,10 +288,10 @@ class Timer
 
 					// Remove time event
 					time_events.erase(time_events.begin());
-
+					auto tempHandler = events[te.ref].handler;
 					// Invoke the handler
 					lock.unlock();
-					events[te.ref].handler(te.ref);
+					tempHandler(te.ref);
 					lock.lock();
 
 					if(events[te.ref].valid && events[te.ref].period.count() > 0) {