diff --git a/src/main/resources/com/google/api/codegen/php/client_impl.snip b/src/main/resources/com/google/api/codegen/php/client_impl.snip
index 229fab0cbb..e94e423323 100644
--- a/src/main/resources/com/google/api/codegen/php/client_impl.snip
+++ b/src/main/resources/com/google/api/codegen/php/client_impl.snip
@@ -132,6 +132,7 @@
             @end
             'clientConfig' => __DIR__ . '{@xapiClass.clientConfigPath}',
             'descriptorsConfigPath' => __DIR__ . '/../resources/{@xapiClass.clientConfigName}_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/{@xapiClass.clientConfigName}_grpc_config.json',
             'credentialsConfig' => [
                 @if xapiClass.hasDefaultServiceScopes
                     'scopes' => self::$serviceScopes,
diff --git a/src/test/java/com/google/api/codegen/testdata/php/php_library.baseline b/src/test/java/com/google/api/codegen/testdata/php/php_library.baseline
index 3c1ff0dc8e..4d9a595687 100644
--- a/src/test/java/com/google/api/codegen/testdata/php/php_library.baseline
+++ b/src/test/java/com/google/api/codegen/testdata/php/php_library.baseline
@@ -196,6 +196,7 @@ class LibraryServiceGapicClient
             'serviceAddress' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
             'clientConfig' => __DIR__ . '/../resources/library_service_client_config.json',
             'descriptorsConfigPath' => __DIR__ . '/../resources/library_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/library_service_grpc_config.json',
             'credentialsConfig' => [
                 'scopes' => self::$serviceScopes,
             ],
diff --git a/src/test/java/com/google/api/codegen/testdata/php/php_longrunning.baseline b/src/test/java/com/google/api/codegen/testdata/php/php_longrunning.baseline
index 7c7be1323d..fcf523f14a 100644
--- a/src/test/java/com/google/api/codegen/testdata/php/php_longrunning.baseline
+++ b/src/test/java/com/google/api/codegen/testdata/php/php_longrunning.baseline
@@ -143,6 +143,7 @@ class OperationsGapicClient
             'serviceName' => self::SERVICE_NAME,
             'clientConfig' => __DIR__ . '/../resources/operations_client_config.json',
             'descriptorsConfigPath' => __DIR__ . '/../resources/operations_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/operations_grpc_config.json',
             'credentialsConfig' => [
             ],
             'transportConfig' => [
diff --git a/src/test/java/com/google/api/codegen/testdata/php/php_no_path_templates.baseline b/src/test/java/com/google/api/codegen/testdata/php/php_no_path_templates.baseline
index a185b31225..18ca188998 100644
--- a/src/test/java/com/google/api/codegen/testdata/php/php_no_path_templates.baseline
+++ b/src/test/java/com/google/api/codegen/testdata/php/php_no_path_templates.baseline
@@ -115,6 +115,7 @@ class NoTemplatesApiServiceGapicClient
             'serviceName' => self::SERVICE_NAME,
             'clientConfig' => __DIR__ . '/../resources/no_templates_api_service_client_config.json',
             'descriptorsConfigPath' => __DIR__ . '/../resources/no_templates_api_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/no_templates_api_service_grpc_config.json',
             'credentialsConfig' => [
             ],
             'transportConfig' => [