diff --git a/img_wget.pl b/img_wget.pl
index 3dbafcb..21a73b0 100644
--- a/img_wget.pl
+++ b/img_wget.pl
@@ -68,6 +68,7 @@ sub hookfn {
 				sleep 1 unless(defined($t));
 			} unless (defined($t));
 
+			$t->detach();
 			undef $t;
 
 			if ($active == 1) {