diff --git a/tests/.env.test b/tests/.env.test
index 4bb2ea5..d6d3712 100644
--- a/tests/.env.test
+++ b/tests/.env.test
@@ -88,3 +88,7 @@ FIRST_PAGE_URL=${PROJECT_PUBLIC_HOST}/first-page
 MOCK_SERVER_HOST=http://localhost:${MOCK_SERVER_PORT}
 MOCK_SERVER_PORT=8090
 PROJECT_PUBLIC_HOST=${MOCK_SERVER_HOST}
+
+# https://github.com/motdotla/dotenv-expand/issues/124
+SOURCE=12345
+EXPANDED=ab-$SOURCE-cd-ef-gh
diff --git a/tests/main.js b/tests/main.js
index d305de1..0beba14 100644
--- a/tests/main.js
+++ b/tests/main.js
@@ -612,3 +612,13 @@ t.test('expansion for https://github.com/motdotla/dotenv-expand/issues/123', ct
 
   ct.end()
 })
+
+t.test('expansion for https://github.com/motdotla/dotenv-expand/issues/124', ct => {
+  const dotenv = require('dotenv').config({ path: 'tests/.env.test' })
+  dotenvExpand.expand(dotenv)
+
+  ct.equal(process.env.SOURCE, '12345')
+  ct.equal(process.env.EXPANDED, 'ab-12345-cd-ef-gh')
+
+  ct.end()
+})