diff --git a/google/cloud/bigquery/connection/v1/connection.proto b/google/cloud/bigquery/connection/v1/connection.proto
index f02f2a03..47399138 100644
--- a/google/cloud/bigquery/connection/v1/connection.proto
+++ b/google/cloud/bigquery/connection/v1/connection.proto
@@ -30,6 +30,7 @@ option csharp_namespace = "Google.Cloud.BigQuery.Connection.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/bigquery/connection/v1;connection";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.bigquery.connection.v1";
+option php_namespace = "Google\\Cloud\\BigQuery\\Connection\\V1beta1";
 
 // Manages external data source connections and credentials.
 service ConnectionService {
diff --git a/google/cloud/bigquery/connection/v1/connection_gapic.yaml b/google/cloud/bigquery/connection/v1/connection_gapic.yaml
index 354bfddb..565893cf 100644
--- a/google/cloud/bigquery/connection/v1/connection_gapic.yaml
+++ b/google/cloud/bigquery/connection/v1/connection_gapic.yaml
@@ -7,3 +7,5 @@ language_settings:
     package_name: google.cloud.bigquery.connection_v1.gapic
   go:
     package_name: cloud.google.com/go/bigquery/connection/apiv1
+  php:
+    package_name: Google\Cloud\BigQuery\Connection\V1
diff --git a/google/cloud/bigquery/connection/v1beta1/connection.proto b/google/cloud/bigquery/connection/v1beta1/connection.proto
index 5b6d05df..e70f6f39 100644
--- a/google/cloud/bigquery/connection/v1beta1/connection.proto
+++ b/google/cloud/bigquery/connection/v1beta1/connection.proto
@@ -30,6 +30,7 @@ option csharp_namespace = "Google.Cloud.BigQuery.Connection.V1Beta1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/bigquery/connection/v1beta1;connection";
 option java_outer_classname = "ConnectionProto";
 option java_package = "com.google.cloud.bigquery.connection.v1beta1";
+option php_namespace = "Google\\Cloud\\BigQuery\\Connection\\V1beta1";
 
 // Manages external data source connections and credentials.
 service ConnectionService {
diff --git a/google/cloud/bigquery/reservation/v1/bigqueryreservation_gapic.yaml b/google/cloud/bigquery/reservation/v1/bigqueryreservation_gapic.yaml
index 63e00414..da52ffec 100644
--- a/google/cloud/bigquery/reservation/v1/bigqueryreservation_gapic.yaml
+++ b/google/cloud/bigquery/reservation/v1/bigqueryreservation_gapic.yaml
@@ -13,6 +13,6 @@ language_settings:
   ruby:
     package_name: Google::Cloud::Bigquery::Reservation::V1
   php:
-    package_name: Google\Cloud\Bigquery\Reservation\V1
+    package_name: Google\Cloud\BigQuery\Reservation\V1
   nodejs:
     package_name: reservation.v1
diff --git a/google/cloud/bigquery/reservation/v1/reservation.proto b/google/cloud/bigquery/reservation/v1/reservation.proto
index 62a237f2..4b90ffdd 100644
--- a/google/cloud/bigquery/reservation/v1/reservation.proto
+++ b/google/cloud/bigquery/reservation/v1/reservation.proto
@@ -30,6 +30,7 @@ option go_package = "google.golang.org/genproto/googleapis/cloud/bigquery/reserv
 option java_multiple_files = true;
 option java_outer_classname = "ReservationProto";
 option java_package = "com.google.cloud.bigquery.reservation.v1";
+option php_namespace = "Google\\Cloud\\BigQuery\\Reservation\\V1";
 
 // This API allows users to manage their flat-rate BigQuery reservations.
 //
diff --git a/google/cloud/bigquery/reservation/v1beta1/bigqueryreservation_gapic.yaml b/google/cloud/bigquery/reservation/v1beta1/bigqueryreservation_gapic.yaml
index 46343f53..27f6a4fc 100644
--- a/google/cloud/bigquery/reservation/v1beta1/bigqueryreservation_gapic.yaml
+++ b/google/cloud/bigquery/reservation/v1beta1/bigqueryreservation_gapic.yaml
@@ -13,6 +13,6 @@ language_settings:
   ruby:
     package_name: Google::Cloud::Bigquery::Reservation::V1beta1
   php:
-    package_name: Google\Cloud\Bigquery\Reservation\V1beta1
+    package_name: Google\Cloud\BigQuery\Reservation\V1beta1
   nodejs:
     package_name: reservation.v1beta1
diff --git a/google/cloud/bigquery/reservation/v1beta1/reservation.proto b/google/cloud/bigquery/reservation/v1beta1/reservation.proto
index fffd94f4..39b09dd6 100644
--- a/google/cloud/bigquery/reservation/v1beta1/reservation.proto
+++ b/google/cloud/bigquery/reservation/v1beta1/reservation.proto
@@ -28,6 +28,7 @@ import "google/rpc/status.proto";
 option go_package = "google.golang.org/genproto/googleapis/cloud/bigquery/reservation/v1beta1;reservation";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.bigquery.reservation.v1beta1";
+option php_namespace = "Google\\Cloud\\BigQuery\\Reservation\\V1beta1";
 
 // This API allows users to manage their flat-rate BigQuery reservations.
 //