diff --git a/src/environment.ts b/src/environment.ts
index 7b731f76..ec7d9b1c 100644
--- a/src/environment.ts
+++ b/src/environment.ts
@@ -23,6 +23,18 @@ export const SENTRY_DSN: string | null = process.env.SENTRY_DSN || null
 // uri path to the users project workspace
 export const WORKSPACE_ROOT: string = getWorkspaceRoot()
 
-// Possible values are 'aix', 'darwin', 'freebsd', 'linux', 'openbsd', 'sunos', and 'win32'.
+// Possible values are: 'aix', 'darwin', 'freebsd', 'linux', 'openbsd', 'sunos', and 'win32'.
+// The value 'android' may also be returned if Node.js is built on the Android operating system. Android support is experimental.
 // @ts-ignore
-export const OS_PLATFORM: 'win32' | 'linux' = os.platform()
+export const OS_PLATFORM: 'win32' | 'linux' | 'darwin' = os.platform()
+
+const supportedOS = [
+  'win32', // windows
+  'darwin', // macos
+  'linux',
+  // 'android' // TODO: validate support
+]
+
+if (!supportedOS.includes(OS_PLATFORM)) {
+  throw new Error(`OS ${OS_PLATFORM}" not supported with CodeRoad`)
+}