diff --git a/custom-words.txt b/custom-words.txt
index c98d7a947ca6..5aa68955ae61 100644
--- a/custom-words.txt
+++ b/custom-words.txt
@@ -34,6 +34,7 @@ Adhoc
 adhybridhealthservice
 adla
 adls
+adlsgen
 adminmanagement
 ADSIs
 ADTO
diff --git a/specification/search/data-plane/Azure.Search/preview/2020-06-30-Preview/searchservice.json b/specification/search/data-plane/Azure.Search/preview/2020-06-30-Preview/searchservice.json
index 425dbc806224..426e43bb16ea 100644
--- a/specification/search/data-plane/Azure.Search/preview/2020-06-30-Preview/searchservice.json
+++ b/specification/search/data-plane/Azure.Search/preview/2020-06-30-Preview/searchservice.json
@@ -5637,7 +5637,8 @@
         "cosmosdb",
         "azureblob",
         "azuretable",
-        "mysql"
+        "mysql",
+        "adlsgen2"
       ],
       "x-ms-enum": {
         "name": "SearchIndexerDataSourceType",
@@ -5656,17 +5657,22 @@
           {
             "value": "azureblob",
             "name": "AzureBlob",
-            "description": "Indicates a Azure Blob datasource."
+            "description": "Indicates an Azure Blob datasource."
           },
           {
             "value": "azuretable",
             "name": "AzureTable",
-            "description": "Indicates a Azure Table datasource."
+            "description": "Indicates an Azure Table datasource."
           },
           {
             "value": "mysql",
             "name": "MySql",
             "description": "Indicates a MySql datasource."
+          },
+          {
+            "value": "adlsgen2",
+            "name": "AdlsGen2",
+            "description": "Indicates an ADLS Gen2 datasource."
           }
         ]
       },
diff --git a/specification/search/data-plane/Azure.Search/preview/2020-06-30/searchservice.json b/specification/search/data-plane/Azure.Search/preview/2020-06-30/searchservice.json
index e7eb0e528bee..ade92ac22ab4 100644
--- a/specification/search/data-plane/Azure.Search/preview/2020-06-30/searchservice.json
+++ b/specification/search/data-plane/Azure.Search/preview/2020-06-30/searchservice.json
@@ -5637,7 +5637,8 @@
         "cosmosdb",
         "azureblob",
         "azuretable",
-        "mysql"
+        "mysql",
+        "adlsgen2"
       ],
       "x-ms-enum": {
         "name": "SearchIndexerDataSourceType",
@@ -5656,17 +5657,22 @@
           {
             "value": "azureblob",
             "name": "AzureBlob",
-            "description": "Indicates a Azure Blob datasource."
+            "description": "Indicates an Azure Blob datasource."
           },
           {
             "value": "azuretable",
             "name": "AzureTable",
-            "description": "Indicates a Azure Table datasource."
+            "description": "Indicates an Azure Table datasource."
           },
           {
             "value": "mysql",
             "name": "MySql",
             "description": "Indicates a MySql datasource."
+          },
+          {
+            "value": "adlsgen2",
+            "name": "AdlsGen2",
+            "description": "Indicates an ADLS Gen2 datasource."
           }
         ]
       },