diff --git a/lib/datasource/npm.js b/lib/datasource/npm.js
index 14c66fdb70ad751ca7586a7010d1f6bf1102d7af..db6f3dd5f27d94254eec4bea6e87afe161dce1f8 100644
--- a/lib/datasource/npm.js
+++ b/lib/datasource/npm.js
@@ -149,7 +149,7 @@ async function getDependencyInner(name, retries = 5) {
     })).body;
     if (res.name !== name) {
       logger.warn(
-        { lookupName: name, returnedName: res.name },
+        { lookupName: name, returnedName: res.name, regUrl },
         'Returned name does not match with requested name'
       );
       return null;