diff --git a/lib/config/decrypt.js b/lib/config/decrypt.js
index dccb44c2aa799176b1831ef31cb89731fe44f069..93d8ffb25bda5bca1d281d75e9c1c61557e5b3bb 100644
--- a/lib/config/decrypt.js
+++ b/lib/config/decrypt.js
@@ -44,6 +44,7 @@ function decryptConfig(config, privateKey) {
                 }
                 /* eslint-enable no-template-curly-in-string */
               } else {
+                logger.debug('Adding npmrc to config');
                 decryptedConfig.npmrc = `//registry.npmjs.org/:_authToken=${token}\n`;
               }
             } else {
diff --git a/lib/workers/repository/init/config.js b/lib/workers/repository/init/config.js
index 5205bb86444115927f5c123dbb69e7efefbf8fc5..5e1c1c03627353eebd791da9f461495aed59477e 100644
--- a/lib/workers/repository/init/config.js
+++ b/lib/workers/repository/init/config.js
@@ -121,6 +121,7 @@ async function mergeRenovateConfig(config) {
   const decryptedConfig = decryptConfig(migratedConfig, config.privateKey);
   // istanbul ignore if
   if (decryptedConfig.npmrc) {
+    logger.debug('Found npmrc in decrypted config - setting');
     npmApi.setNpmrc(
       decryptedConfig.npmrc,
       config.global ? config.global.exposeEnv : false