diff --git a/lib/scopedConfigReader.js b/lib/scopedConfigReader.js
index 4cb5dad..624794a 100644
--- a/lib/scopedConfigReader.js
+++ b/lib/scopedConfigReader.js
@@ -4,6 +4,10 @@
  * @returns {Object.<string, *>} - values mapped by package name
  */
 const getScopedValues = (propertyName, config) => {
+  if (!('scopes' in config)) {
+    return {};
+  }
+
   if (!(config.scope in config.scopes)) {
     throw new Error(`Unknown scope \`${ config.scope }\`. Known scopes are [${
       Object.keys(config.scopes).join('./')