diff --git a/drivers/platform/x86/dell/dell-wmi-sysman/dell-wmi-sysman.h b/drivers/platform/x86/dell/dell-wmi-sysman/dell-wmi-sysman.h
index 3bddedad5eba..eb48ced55823 100644
--- a/drivers/platform/x86/dell/dell-wmi-sysman/dell-wmi-sysman.h
+++ b/drivers/platform/x86/dell/dell-wmi-sysman/dell-wmi-sysman.h
@@ -107,7 +107,7 @@ enum {
 static int get_##type##_instance_id(struct kobject *kobj)			\
 {										\
 	int i;									\
-	for (i = 0; i <= wmi_priv.type##_instances_count; i++) {		\
+	for (i = 0; i < wmi_priv.type##_instances_count; i++) {			\
 		if (!(strcmp(kobj->name, wmi_priv.type##_data[i].attribute_name)))\
 			return i;						\
 	}									\