diff --git a/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/asset_service.proto b/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/asset_service.proto
index 7925bba68785..a19ee75fabd1 100644
--- a/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/asset_service.proto
+++ b/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/asset_service.proto
@@ -32,7 +32,7 @@ option go_package = "google.golang.org/genproto/googleapis/cloud/asset/v1p2beta1
 option java_multiple_files = true;
 option java_outer_classname = "AssetServiceProto";
 option java_package = "com.google.cloud.asset.v1p2beta1";
-option php_namespace = "Google\\Cloud\\Asset\\V1p2Beta1";
+option php_namespace = "Google\\Cloud\\Asset\\V1p2beta1";
 
 // Asset service definition.
 service AssetService {
diff --git a/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/assets.proto b/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/assets.proto
index 8fee229bbc39..33d93e1c3b32 100644
--- a/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/assets.proto
+++ b/packages/google-cloud-asset/protos/google/cloud/asset/v1p2beta1/assets.proto
@@ -29,7 +29,7 @@ option go_package = "google.golang.org/genproto/googleapis/cloud/asset/v1p2beta1
 option java_multiple_files = true;
 option java_outer_classname = "AssetProto";
 option java_package = "com.google.cloud.asset.v1p2beta1";
-option php_namespace = "Google\\Cloud\\Asset\\v1p2beta1";
+option php_namespace = "Google\\Cloud\\Asset\\V1p2beta1";
 
 // Temporal asset. In addition to the asset, the temporal asset includes the
 // status of the asset and valid from and to time of it.
diff --git a/packages/google-cloud-asset/protos/protos.json b/packages/google-cloud-asset/protos/protos.json
index 91be1888f9ec..c3ab1296b932 100644
--- a/packages/google-cloud-asset/protos/protos.json
+++ b/packages/google-cloud-asset/protos/protos.json
@@ -1587,7 +1587,7 @@
                     "java_multiple_files": true,
                     "java_outer_classname": "AssetProto",
                     "java_package": "com.google.cloud.asset.v1p2beta1",
-                    "php_namespace": "Google\\Cloud\\Asset\\v1p2beta1",
+                    "php_namespace": "Google\\Cloud\\Asset\\V1p2beta1",
                     "cc_enable_arenas": true
                   },
                   "nested": {