diff --git a/lib/manager/gradle/index.js b/lib/manager/gradle/index.js
index 5096bcdfd4774bf48a5cf18b7a6cd74f0d019550..06a869fd5672e0ec26a2a47d0368d49ef999a5b1 100644
--- a/lib/manager/gradle/index.js
+++ b/lib/manager/gradle/index.js
@@ -50,6 +50,7 @@ async function extractAllPackageFiles(config, packageFiles) {
 
       gradle.collectVersionVariables(dependencies, content);
     } else {
+      // istanbul ignore next
       logger.info({ packageFile }, 'packageFile has no content');
     }
   }