diff --git a/google/devtools/cloudprofiler/cloudprofiler.yaml b/google/devtools/cloudprofiler/cloudprofiler.yaml
index d2f6e3d..632db5a 100644
--- a/google/devtools/cloudprofiler/cloudprofiler.yaml
+++ b/google/devtools/cloudprofiler/cloudprofiler.yaml
@@ -1,7 +1,7 @@
 type: google.api.Service
 config_version: 3
 name: cloudprofiler.googleapis.com
-title: Google Cloud Profiler API
+title: Stackdriver Profiler API
 
 apis:
 - name: google.devtools.cloudprofiler.v2.ProfilerService
@@ -9,7 +9,7 @@
 documentation:
   summary: Allows Google services to send in continuous profiling information.
   overview: |-
-    The Google Cloud Profiler API allows Google services manage the continuous
+    The Stackdriver Profiler API allows Google services manage the continuous
     profiling information collected in cloud environments like Flex and GCE VMs.
 
 authentication:
diff --git a/google/devtools/cloudprofiler/v2/profiler.proto b/google/devtools/cloudprofiler/v2/profiler.proto
index eb1c32d..a42dd74 100644
--- a/google/devtools/cloudprofiler/v2/profiler.proto
+++ b/google/devtools/cloudprofiler/v2/profiler.proto
@@ -23,9 +23,8 @@
 option go_package = "google.golang.org/genproto/googleapis/devtools/cloudprofiler/v2;cloudprofiler";
 
 
-// Service for recording the profiling data from profiling agents running as
-// part of a GCP deployment being profiled or from an offline provider of
-// profiling data.
+// Service for recording the profiling data from profiling agents running
+// in the cloud or from an offline provider of profiling data.
 //
 // General guidelines:
 // * Profiles for a single deployment must be created in ascending time order.
@@ -135,9 +134,14 @@
   // Value for an individual label must be <= 512 bytes, the total
   // size of all label names and values must be <= 1024 bytes.
   //
-  // Either "zone" or "region" label must be present describing the deployment
-  // location. An example of a zone is "us-central1-a", an example of a region
-  // is "us-central1" or "us-central".
+  // Label named "language" can be used to record the programming language of
+  // the profiled deployment. The standard choices for the value include "java",
+  // "go", "python", "ruby", "nodejs", "php", "dotnet".
+  //
+  // For deployments running on Google Cloud Platform, "zone" or "region" label
+  // should be present describing the deployment location. An example of a zone
+  // is "us-central1-a", an example of a region is "us-central1" or
+  // "us-central".
   map<string, string> labels = 3;
 }