diff --git a/plugins/inputs/sysstat/sysstat_test.go b/plugins/inputs/sysstat/sysstat_test.go
index 3c8f93d04..e344d307d 100644
--- a/plugins/inputs/sysstat/sysstat_test.go
+++ b/plugins/inputs/sysstat/sysstat_test.go
@@ -15,6 +15,7 @@ import (
 var s = Sysstat{
 	interval:   10,
 	Sadc:       "/usr/lib/sa/sadc",
+	Sadf:       "/usr/bin/sadf",
 	Group:      false,
 	Activities: []string{"DISK", "SNMP"},
 	Options: map[string]string{