diff --git a/schemas/2020-03-01-preview/Microsoft.OperationalInsights.json b/schemas/2020-03-01-preview/Microsoft.OperationalInsights.json
index 6d7564e35e..d5afbad83a 100644
--- a/schemas/2020-03-01-preview/Microsoft.OperationalInsights.json
+++ b/schemas/2020-03-01-preview/Microsoft.OperationalInsights.json
@@ -605,17 +605,6 @@
     "DataExportProperties": {
       "type": "object",
       "properties": {
-        "allTables": {
-          "oneOf": [
-            {
-              "type": "boolean"
-            },
-            {
-              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
-            }
-          ],
-          "description": "When ‘true’, all workspace's tables are exported."
-        },
         "createdDate": {
           "type": "string",
           "description": "The latest data export rule modification time."