diff --git a/lib/index.js b/lib/index.js
index b9183c5..27fcec0 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -28,7 +28,7 @@ class Aws {
         const promise = Promise.resolve().then(function () {
             const env_vars = ('HOME PATH AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY ' +
                 'AWS_SESSION_TOKEN AWS_DEFAULT_REGION ' +
-                'AWS_DEFAULT_PROFILE AWS_CONFIG_FILE').split(' ');
+                'AWS_PROFILE AWS_DEFAULT_PROFILE AWS_CONFIG_FILE').split(' ');
             const env = _.reduce(env_vars, (result, value) => {
                 if (process.env[value]) {
                     result[value] = process.env[value];