diff --git a/lib/index.js b/lib/index.js
index 390dbdbe..ad69c4eb 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -490,7 +490,7 @@ function parseOptions(a, b) {
     port,
     path        : o.path || host.indexOf('/') > -1 && host + '/.s.PGSQL.' + port,
     database    : o.database || o.db || (url.pathname || '').slice(1) || env.PGDATABASE || 'postgres',
-    user        : o.user || o.username || auth[0] || env.PGUSERNAME || env.PGUSER || os.userInfo().username,
+    user        : o.user || o.username || auth[0] || env.PGUSERNAME || env.PGUSER || osUsername(),
     pass        : o.pass || o.password || auth[1] || env.PGPASSWORD || '',
     max         : o.max || url.query.max || Math.max(1, os.cpus().length),
     types       : o.types || {},
@@ -505,3 +505,11 @@ function parseOptions(a, b) {
     mergeUserTypes(o.types)
   )
 }
+
+function osUsername() {
+  try {
+    return require('os').userInfo().username // eslint-disable-line
+  } catch (_) {
+    return
+  }
+}