diff --git a/tests/software-upgrades/ONOS_AppsUpgrade.robot b/tests/software-upgrades/ONOS_AppsUpgrade.robot
index cafdb90..485ff71 100644
--- a/tests/software-upgrades/ONOS_AppsUpgrade.robot
+++ b/tests/software-upgrades/ONOS_AppsUpgrade.robot
@@ -95,7 +95,7 @@
         ${app_details}    Get ONOS App Details    ${onos_url}    ${app}
         Log    ${app}: before upgrade: ${app_details}
         Delete ONOS App    ${onos_url}    ${app}
-        Sleep 10s
+        Sleep    10s
         Verify ONOS Apps Active Except App Under Test    ${onos_url}    ${app}
         Install And Activate ONOS App    ${onos_url}    ${oar_file}
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s