diff --git a/schemas/2021-07-01-preview/Microsoft.Devices.json b/schemas/2021-07-01-preview/Microsoft.Devices.json
index 289dca9977..ed1c548007 100644
--- a/schemas/2021-07-01-preview/Microsoft.Devices.json
+++ b/schemas/2021-07-01-preview/Microsoft.Devices.json
@@ -275,6 +275,17 @@
         "certificate": {
           "type": "string",
           "description": "The certificate content"
+        },
+        "isVerified": {
+          "oneOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Determines whether certificate has been verified."
         }
       },
       "description": "The description of an X509 CA Certificate."
diff --git a/schemas/2021-07-01/Microsoft.Devices.json b/schemas/2021-07-01/Microsoft.Devices.json
index 28319ee1d9..b8ba43fe69 100644
--- a/schemas/2021-07-01/Microsoft.Devices.json
+++ b/schemas/2021-07-01/Microsoft.Devices.json
@@ -275,6 +275,17 @@
         "certificate": {
           "type": "string",
           "description": "The certificate content"
+        },
+        "isVerified": {
+          "oneOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Determines whether certificate has been verified."
         }
       },
       "description": "The description of an X509 CA Certificate."