diff --git a/languageserver/src/client.ts b/languageserver/src/client.ts
index de54554..ac0aa61 100644
--- a/languageserver/src/client.ts
+++ b/languageserver/src/client.ts
@@ -1,8 +1,9 @@
 import {Octokit} from "@octokit/rest";
 
-export function getClient(token: string, userAgent?: string): Octokit {
+export function getClient(token: string, userAgent?: string, apiUrl?: string): Octokit {
   return new Octokit({
     auth: token,
-    userAgent: userAgent || `GitHub Actions Language Server`
+    userAgent: userAgent || `GitHub Actions Language Server`,
+    baseUrl: apiUrl
   });
 }
diff --git a/languageserver/src/connection.ts b/languageserver/src/connection.ts
index 274923a..90b139b 100644
--- a/languageserver/src/connection.ts
+++ b/languageserver/src/connection.ts
@@ -51,7 +51,7 @@ export function initConnection(connection: Connection) {
     const options = params.initializationOptions as InitializationOptions;
 
     if (options.sessionToken) {
-      client = getClient(options.sessionToken, options.userAgent);
+      client = getClient(options.sessionToken, options.userAgent, options.gitHubApiUrl);
     }
 
     if (options.repos) {
diff --git a/languageserver/src/context-providers/variables.ts b/languageserver/src/context-providers/variables.ts
index 92e5d4c..ef32c78 100644
--- a/languageserver/src/context-providers/variables.ts
+++ b/languageserver/src/context-providers/variables.ts
@@ -2,9 +2,10 @@ import {data, DescriptionDictionary} from "@actions/expressions";
 import {Pair} from "@actions/expressions/data/expressiondata";
 import {StringData} from "@actions/expressions/data/index";
 import {WorkflowContext} from "@actions/languageservice/context/workflow-context";
-import {warn} from "@actions/languageservice/log";
+import {log, warn} from "@actions/languageservice/log";
 import {isMapping, isString} from "@actions/workflow-parser";
 import {Octokit} from "@octokit/rest";
+import {RequestError} from "@octokit/request-error";
 
 import {RepositoryContext} from "../initializationOptions";
 import {TTLCache} from "../utils/cache";
@@ -42,50 +43,58 @@ export async function getVariables(
   }
 
   const variablesContext = defaultContext || new DescriptionDictionary();
-  const variables = await getRemoteVariables(octokit, cache, repo, environmentName);
+  try {
+    const variables = await getRemoteVariables(octokit, cache, repo, environmentName);
 
-  // Build combined map of variables
-  const variablesMap = new Map<
-    string,
-    {
-      key: string;
-      value: data.StringData;
-      description?: string;
-    }
-  >();
+    // Build combined map of variables
+    const variablesMap = new Map<
+      string,
+      {
+        key: string;
+        value: data.StringData;
+        description?: string;
+      }
+    >();
 
-  variables.organizationVariables.forEach(variable =>
-    variablesMap.set(variable.key.toLowerCase(), {
-      key: variable.key,
-      value: new data.StringData(variable.value.coerceString()),
-      description: `${variable.value.coerceString()} - Organization variable`
-    })
-  );
+    variables.organizationVariables.forEach(variable =>
+      variablesMap.set(variable.key.toLowerCase(), {
+        key: variable.key,
+        value: new data.StringData(variable.value.coerceString()),
+        description: `${variable.value.coerceString()} - Organization variable`
+      })
+    );
 
-  // Override org variables with repo variables
-  variables.repoVariables.forEach(variable =>
-    variablesMap.set(variable.key.toLowerCase(), {
-      key: variable.key,
-      value: new data.StringData(variable.value.coerceString()),
-      description: `${variable.value.coerceString()} - Repository variable`
-    })
-  );
+    // Override org variables with repo variables
+    variables.repoVariables.forEach(variable =>
+      variablesMap.set(variable.key.toLowerCase(), {
+        key: variable.key,
+        value: new data.StringData(variable.value.coerceString()),
+        description: `${variable.value.coerceString()} - Repository variable`
+      })
+    );
 
-  // Override repo variables with environment veriables (if defined)
-  variables.environmentVariables.forEach(variable =>
-    variablesMap.set(variable.key.toLowerCase(), {
-      key: variable.key,
-      value: new data.StringData(variable.value.coerceString()),
-      description: `${variable.value.coerceString()} - Variable for environment \`${environmentName || ""}\``
-    })
-  );
+    // Override repo variables with environment veriables (if defined)
+    variables.environmentVariables.forEach(variable =>
+      variablesMap.set(variable.key.toLowerCase(), {
+        key: variable.key,
+        value: new data.StringData(variable.value.coerceString()),
+        description: `${variable.value.coerceString()} - Variable for environment \`${environmentName || ""}\``
+      })
+    );
 
-  // Sort variables by key and add to context
-  Array.from(variablesMap.values())
-    .sort((a, b) => a.key.localeCompare(b.key))
-    .forEach(variable => variablesContext?.add(variable.key, variable.value, variable.description));
+    // Sort variables by key and add to context
+    Array.from(variablesMap.values())
+      .sort((a, b) => a.key.localeCompare(b.key))
+      .forEach(variable => variablesContext?.add(variable.key, variable.value, variable.description));
 
-  return variablesContext;
+    return variablesContext;
+  } catch (e) {
+    if (!(e instanceof RequestError)) throw e;
+    if (e.name == "HttpError" && e.status == 404) {
+      log("Failure to request variables. Ignore if you're using GitHub Enterprise Server below version 3.8");
+      return variablesContext;
+    } else throw e;
+  }
 }
 
 export async function getRemoteVariables(
diff --git a/languageserver/src/initializationOptions.ts b/languageserver/src/initializationOptions.ts
index abc1547..59ef462 100644
--- a/languageserver/src/initializationOptions.ts
+++ b/languageserver/src/initializationOptions.ts
@@ -23,6 +23,11 @@ export interface InitializationOptions {
    * Desired log level
    */
   logLevel?: LogLevel;
+
+  /**
+   * If a GitHub Enterprise Server should be used, the URL of the API endpoint, eg "https://ghe.my-company.com/api/v3"
+   */
+  gitHubApiUrl?: string;
 }
 
 export interface RepositoryContext {