diff --git a/lib/workers/repository/updates/semantic.js b/lib/workers/repository/updates/semantic.js
index 286cd2073b1371f4329b971a4febc5afce8fbc3d..d6933ff14bf58421c499ec306fcfbeb3de62a209 100644
--- a/lib/workers/repository/updates/semantic.js
+++ b/lib/workers/repository/updates/semantic.js
@@ -1,7 +1,13 @@
 const conventionalCommitsDetector = require('conventional-commits-detector');
 
 async function detectSemanticCommits(config) {
+  logger.debug('detectSemanticCommits()');
+  logger.trace({ config });
   if (config.semanticCommits !== null) {
+    logger.debug(
+      { semanticCommits: config.semanticCommits },
+      `semanticCommits already defined`
+    );
     return config.semanticCommits;
   }
   const commitMessages = await platform.getCommitMessages();