diff --git a/lib/manager/docker/extract.js b/lib/manager/docker/extract.js
index 5ddc932c7a90fcde3ba971db478fa1c692a0e252..a5a660afa1f0d9ba15767ae5c0ac469f87c0bfdf 100644
--- a/lib/manager/docker/extract.js
+++ b/lib/manager/docker/extract.js
@@ -38,7 +38,8 @@ function extractDependencies(content) {
   const deps = [];
   const fromMatches = groupedRegex(content, /(?:^|\n)(FROM .+)\n/gi);
   if (!fromMatches.length) {
-    logger.warn({ content }, 'No FROM found');
+    logger.info('No FROM found');
+    logger.debug({ content });
     return [];
   }
   logger.debug({ fromMatches }, 'Found matches');