diff --git a/lib/harmony/harmonytask/harmonytask.go b/lib/harmony/harmonytask/harmonytask.go
index b175aa61b27..feccae8633b 100644
--- a/lib/harmony/harmonytask/harmonytask.go
+++ b/lib/harmony/harmonytask/harmonytask.go
@@ -345,6 +345,7 @@ func (e *TaskEngine) pollerTryAllWork() bool {
 	}
 	// if no work was accepted, are we bored? Then find work in priority order.
 	for _, v := range e.handlers {
+		v := v
 		if v.AssertMachineHasCapacity() != nil {
 			continue
 		}