diff --git a/docs/cli/configuration.md b/docs/cli/configuration.md
index 587ad071..c532b0b6 100644
--- a/docs/cli/configuration.md
+++ b/docs/cli/configuration.md
@@ -216,9 +216,12 @@ The CLI automatically loads environment variables from an `.env` file. The loadi
   - Example: `export GOOGLE_API_KEY="YOUR_GOOGLE_API_ KEY"`.
 - **`GOOGLE_CLOUD_PROJECT`**:
   - Your Google Cloud Project ID.
-  - Required for using Code Assist, Telemetry or Vertex AI.
+  - Required for using Code Assist or Vertex AI.
   - If using Vertex AI, ensure you have the necessary permissions and set the `GOOGLE_GENAI_USE_VERTEXAI=true` environment variable.
   - Example: `export GOOGLE_CLOUD_PROJECT="YOUR_PROJECT_ID"`.
+- **`OTLP_GOOGLE_CLOUD_PROJECT`**:
+  - Your Google Cloud Project ID for Telemetry in Google Cloud
+  - Example: `export OTLP_GOOGLE_CLOUD_PROJECT="YOUR_PROJECT_ID"`.
 - **`GOOGLE_CLOUD_LOCATION`**:
   - Your Google Cloud Project Location (e.g., us-central1).
   - Required for using Vertex AI in non express mode.
diff --git a/docs/core/telemetry.md b/docs/core/telemetry.md
index 42719db5..9dc222f5 100644
--- a/docs/core/telemetry.md
+++ b/docs/core/telemetry.md
@@ -136,7 +136,7 @@ Use the `npm run telemetry -- --target=gcp` command which automates setting up a
     - Ensure you have a Google Cloud Project ID.
     - Export the `GOOGLE_CLOUD_PROJECT` environment variable to make it available to the OTEL collector.
       ```bash
-      export GOOGLE_CLOUD_PROJECT="your-project-id"
+      export OTLP_GOOGLE_CLOUD_PROJECT="your-project-id"
       ```
     - Authenticate with Google Cloud (e.g., run `gcloud auth application-default login` or ensure `GOOGLE_APPLICATION_CREDENTIALS` is set).
     - Ensure your account/service account has the necessary roles: "Cloud Trace Agent", "Monitoring Metric Writer", and "Logs Writer".
diff --git a/scripts/telemetry_gcp.js b/scripts/telemetry_gcp.js
index c88a9dbc..710fbe17 100755
--- a/scripts/telemetry_gcp.js
+++ b/scripts/telemetry_gcp.js
@@ -78,18 +78,18 @@ async function main() {
     originalSandboxSetting,
   );
 
-  const projectId = process.env.GOOGLE_CLOUD_PROJECT;
+  const projectId = process.env.OTLP_GOOGLE_CLOUD_PROJECT;
   if (!projectId) {
     console.error(
-      '🛑 Error: GOOGLE_CLOUD_PROJECT environment variable is not exported.',
+      '🛑 Error: OTLP_GOOGLE_CLOUD_PROJECT environment variable is not exported.',
     );
     console.log(
       '   Please set it to your Google Cloud Project ID and try again.',
     );
-    console.log('   `export GOOGLE_CLOUD_PROJECT=your-project-id`');
+    console.log('   `export OTLP_GOOGLE_CLOUD_PROJECT=your-project-id`');
     process.exit(1);
   }
-  console.log(`✅ Using Google Cloud Project ID: ${projectId}`);
+  console.log(`✅ Using OTLP Google Cloud Project ID: ${projectId}`);
 
   console.log('\n🔑 Please ensure you are authenticated with Google Cloud:');
   console.log(