diff --git a/src/install-pnpm/run.ts b/src/install-pnpm/run.ts
index 814bad9..8d6b384 100644
--- a/src/install-pnpm/run.ts
+++ b/src/install-pnpm/run.ts
@@ -30,7 +30,7 @@ export async function runSelfInstaller(inputs: Inputs): Promise<number> {
   if (result === 0) {
     const pnpmHome = join(dest, 'node_modules/.bin')
     core.addPath(pnpmHome)
-    core.exportVariable('PNPM_HOME', pnpmHome)
+    core.exportVariable('PNPM_HOME_PATH', pnpmHome)
   }
   return result
 }