diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1a6ed74..d4d6ddb 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -25,7 +25,7 @@ jobs:
 
       - uses: atharvamulmuley/k8s-set-context@cluster-connect-2
         with:
-          method: spn
+          method: SPN
           cluster-type: 'arc'
           creds: '${{ secrets.AZURE_CREDS }}'
           cluster-name: arcaction
diff --git a/README.md b/README.md
index 0898fb0..fdf4960 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ In both these approaches it is recommended to store these contents (kubeconfig f
   </thead>
   <tr>
     <td><code>method</code><br/>Method</td>
-    <td>(Optional) Acceptable values: kubeconfig/service-account/spn. Default value: kubeconfig</td>
+    <td>(Optional) Acceptable values: kubeconfig/service-account/SPN. Default value: kubeconfig</td>
   </tr>
   <tr>
     <td><code>kubeconfig</code><br/>Kubectl config</td>
diff --git a/action.yml b/action.yml
index 3001753..d66a88b 100644
--- a/action.yml
+++ b/action.yml
@@ -7,7 +7,7 @@ inputs:
     required: true
     default: 'generic'
   method:
-    description: 'Acceptable values: kubeconfig or service-account or spn'
+    description: 'Acceptable values: kubeconfig or service-account or SPN'
     required: true
     default: 'kubeconfig'
   kubeconfig:
diff --git a/src/arc-login.ts b/src/arc-login.ts
index b09c79c..0b5b365 100644
--- a/src/arc-login.ts
+++ b/src/arc-login.ts
@@ -52,7 +52,7 @@ async function getAzureAccessToken(servicePrincipalId, servicePrincipalKey, tena
 export async function getArcKubeconfig(): Promise<string> {
     try {
         let method = core.getInput('method');
-        if (method != 'service-account' && method != 'spn'){
+        if (method != 'service-account' && method != 'SPN'){
             throw Error("Supported methods for arc cluster are 'service-account' and 'spn'.");
         }