diff --git a/lib/manager/index.js b/lib/manager/index.js
index b550b8bf9ad0e526e468b6eafcb06b9b82adbabd..129908c4388b5c55f6ed711b6e048bc92f38332e 100644
--- a/lib/manager/index.js
+++ b/lib/manager/index.js
@@ -30,6 +30,9 @@ async function detectPackageFiles(config) {
   );
   for (const manager of managerList) {
     logger.debug(`Detecting package files (${manager})`);
+    if (!(config[manager] && config[manager].enabled)) {
+      continue; // eslint-disable-line no-continue
+    }
     let files = [];
     if (managers[manager].detectPackageFiles) {
       files = await managers[manager].detectPackageFiles(config, fileList);