diff --git a/lib/get-repo.js b/lib/get-repo.js
index dc04cb48..1774ba64 100644
--- a/lib/get-repo.js
+++ b/lib/get-repo.js
@@ -1,4 +1,4 @@
-const obj2map = obj => Object.keys(obj).reduce((m, k) => m.set(k, obj[k]), new Map())
+const obj2map = (o) => new Map(Object.entries(o))
 const repos = obj2map(require('all-the-package-repos'))
 delete require.cache[require.resolve('all-the-package-repos')]