diff --git a/redfish/managers/test_bmc_ipv6.robot b/redfish/managers/test_bmc_ipv6.robot
index 913ace8..55c07c7 100644
--- a/redfish/managers/test_bmc_ipv6.robot
+++ b/redfish/managers/test_bmc_ipv6.robot
@@ -17,7 +17,7 @@
 ${test_ipv6_addr}          2001:db8:3333:4444:5555:6666:7777:8888
 ${test_ipv6_invalid_addr}  2001:db8:3333:4444:5555:6666:7777:JJKK
 
-# Valid prefix length is a intiger ranges from 1 to 128.
+# Valid prefix length is a integer ranges from 1 to 128.
 ${test_prefix_lenght}     64