diff --git a/google/shopping/css/BUILD.bazel b/google/shopping/css/BUILD.bazel
new file mode 100644
index 0000000000..1750a78cbf
--- /dev/null
+++ b/google/shopping/css/BUILD.bazel
@@ -0,0 +1,36 @@
+# This build file includes a target for the Ruby wrapper library for
+# google-shopping-css.
+
+# This is an API workspace, having public visibility by default makes perfect sense.
+package(default_visibility = ["//visibility:public"])
+
+# Export yaml configs.
+exports_files(glob(["*.yaml"]))
+
+load(
+    "@com_google_googleapis_imports//:imports.bzl",
+    "ruby_cloud_gapic_library",
+    "ruby_gapic_assembly_pkg",
+)
+
+# Generates a Ruby wrapper client for shopping-css.
+# Ruby wrapper clients are versionless, but are generated from source protos
+# for a particular service version, v1 in this case.
+ruby_cloud_gapic_library(
+    name = "css_ruby_wrapper",
+    srcs = ["//google/shopping/css/v1:css_proto_with_info"],
+    extra_protoc_parameters = [
+        "ruby-cloud-gem-name=google-shopping-css",
+        "ruby-cloud-wrapper-of=v1:0.0",
+    ],
+    service_yaml = "//google/shopping/css/v1:css_v1.yaml",
+    transport = "grpc+rest",
+)
+
+# Open Source package.
+ruby_gapic_assembly_pkg(
+    name = "google-shopping-css-ruby",
+    deps = [
+        ":css_ruby_wrapper",
+    ],
+)
diff --git a/google/shopping/css/v1/BUILD.bazel b/google/shopping/css/v1/BUILD.bazel
index 9ce93e5067..3d103ac58c 100644
--- a/google/shopping/css/v1/BUILD.bazel
+++ b/google/shopping/css/v1/BUILD.bazel
@@ -310,7 +310,7 @@ ruby_cloud_gapic_library(
     name = "css_ruby_gapic",
     srcs = [":css_proto_with_info"],
     extra_protoc_parameters = [
-        "ruby-cloud-gem-name=google-cloud-shopping-css-v1",
+        "ruby-cloud-gem-name=google-shopping-css-v1",
     ],
     grpc_service_config = "css_grpc_service_config.json",
     rest_numeric_enums = True,
@@ -324,7 +324,7 @@ ruby_cloud_gapic_library(
 
 # Open Source Packages
 ruby_gapic_assembly_pkg(
-    name = "google-cloud-shopping-css-v1-ruby",
+    name = "google-shopping-css-v1-ruby",
     deps = [
         ":css_ruby_gapic",
         ":css_ruby_grpc",