diff --git a/dlp/src/inspect_bigquery.php b/dlp/src/inspect_bigquery.php
index 635c4d9162..5ba4c1947a 100644
--- a/dlp/src/inspect_bigquery.php
+++ b/dlp/src/inspect_bigquery.php
@@ -17,7 +17,7 @@
  */
 namespace Google\Cloud\Samples\Dlp;
 
-# [START inspect_bigquery]
+# [START dlp_inspect_bigquery]
 use Google\Cloud\Dlp\V2beta1\DlpServiceClient;
 use Google\Cloud\Dlp\V2beta1\BigQueryOptions;
 use Google\Cloud\Dlp\V2beta1\InfoType;
@@ -98,4 +98,4 @@ function inspect_bigquery(
         print_r($operation->getError());
     }
 }
-# [END inspect_bigquery]
+# [END dlp_inspect_bigquery]
diff --git a/dlp/src/inspect_datastore.php b/dlp/src/inspect_datastore.php
index 976ce1a26b..d0780ac1c5 100644
--- a/dlp/src/inspect_datastore.php
+++ b/dlp/src/inspect_datastore.php
@@ -17,7 +17,7 @@
  */
 namespace Google\Cloud\Samples\Dlp;
 
-# [START inspect_datastore]
+# [START dlp_inspect_datastore]
 use Google\Cloud\Dlp\V2beta1\DlpServiceClient;
 use Google\Cloud\Dlp\V2beta1\DatastoreOptions;
 use Google\Cloud\Dlp\V2beta1\InfoType;
@@ -105,4 +105,4 @@ function inspect_datastore(
         print_r($operation->getError());
     }
 }
-# [END inspect_datastore]
+# [END dlp_inspect_datastore]
diff --git a/dlp/src/inspect_file.php b/dlp/src/inspect_file.php
index c17f8a524b..7732320d8e 100644
--- a/dlp/src/inspect_file.php
+++ b/dlp/src/inspect_file.php
@@ -17,7 +17,7 @@
  */
 namespace Google\Cloud\Samples\Dlp;
 
-# [START inspect_file]
+# [START dlp_inspect_file]
 use Google\Cloud\Dlp\V2beta1\DlpServiceClient;
 use Google\Cloud\Dlp\V2beta1\ContentItem;
 use Google\Cloud\Dlp\V2beta1\InfoType;
@@ -81,4 +81,4 @@ function inspect_file(
         }
     }
 }
-# [END inspect_file]
+# [END dlp_inspect_file]
diff --git a/dlp/src/inspect_string.php b/dlp/src/inspect_string.php
index c6419bdfd2..85eb34f2fd 100644
--- a/dlp/src/inspect_string.php
+++ b/dlp/src/inspect_string.php
@@ -17,7 +17,7 @@
  */
 namespace Google\Cloud\Samples\Dlp;
 
-# [START inspect_string]
+# [START dlp_inspect_string]
 use Google\Cloud\Dlp\V2beta1\DlpServiceClient;
 use Google\Cloud\Dlp\V2beta1\ContentItem;
 use Google\Cloud\Dlp\V2beta1\InfoType;
@@ -80,4 +80,4 @@ function inspect_string(
         }
     }
 }
-# [END inspect_string]
+# [END dlp_inspect_string]
diff --git a/dlp/src/list_categories.php b/dlp/src/list_categories.php
index b5f2de57cc..5dbd4fad8d 100644
--- a/dlp/src/list_categories.php
+++ b/dlp/src/list_categories.php
@@ -17,7 +17,7 @@
  */
 namespace Google\Cloud\Samples\Dlp;
 
-# [START list_categories]
+# [START dlp_list_categories]
 use Google\Cloud\Dlp\V2beta1\DlpServiceClient;
 
 /**
@@ -41,4 +41,4 @@ function list_categories($languageCode = '')
             $category->getName());
     }
 }
-# [END list_categories]
+# [END dlp_list_categories]
diff --git a/dlp/src/list_info_types.php b/dlp/src/list_info_types.php
index fe6e743ca9..6e44626bcc 100644
--- a/dlp/src/list_info_types.php
+++ b/dlp/src/list_info_types.php
@@ -17,7 +17,7 @@
  */
 namespace Google\Cloud\Samples\Dlp;
 
-# [START list_info_types]
+# [START dlp_list_info_types]
 use Google\Cloud\Dlp\V2beta1\DlpServiceClient;
 
 /**
@@ -42,4 +42,4 @@ function list_info_types($category = '', $languageCode = '')
             $infoType->getName());
     }
 }
-# [END list_info_types]
+# [END dlp_list_info_types]
diff --git a/dlp/src/redact_string.php b/dlp/src/redact_string.php
index 984e789f8d..3a2eac7dde 100644
--- a/dlp/src/redact_string.php
+++ b/dlp/src/redact_string.php
@@ -17,7 +17,7 @@
  */
 namespace Google\Cloud\Samples\Dlp;
 
-# [START redact_string]
+# [START dlp_redact_string]
 use Google\Cloud\Dlp\V2beta1\DlpServiceClient;
 use Google\Cloud\Dlp\V2beta1\ContentItem;
 use Google\Cloud\Dlp\V2beta1\InfoType;
@@ -79,4 +79,4 @@ function redact_string(
     // Print the results
     print('Redacted String: ' . $content->getValue() . PHP_EOL);
 }
-# [END redact_string]
+# [END dlp_redact_string]