diff --git a/lib/resource.robot b/lib/resource.robot
index c343f86..03e2e66 100755
--- a/lib/resource.robot
+++ b/lib/resource.robot
@@ -170,6 +170,10 @@
 @{NTP_SERVER_ADDRESSES}    ${EMPTY}
 
 
+# Task Service related variables.
+${TASK_JSON_FILE_PATH}   data/task_state.json
+
+
 *** Keywords ***
 Get Inventory Schema
     [Documentation]  Get inventory schema.