1 files changed, 1 insertions, 0 deletions
diff --git a/handles.go b/handles.go
index c0d1889..a862746 100644
--- a/handles.go
+++ b/handles.go
@@ -16,6 +16,7 @@ type HandleList struct {
 func NewHandleList() *HandleList {
 	return &HandleList{
 		handles: make([]interface{}, 5),
+		set:     make(map[uintptr]bool),
 	}
 }