diff --git a/performanceDb/src/main/java/org/lucares/performance/db/TagsToFile.java b/performanceDb/src/main/java/org/lucares/performance/db/TagsToFile.java
index 7efd92d..c29c00b 100644
--- a/performanceDb/src/main/java/org/lucares/performance/db/TagsToFile.java
+++ b/performanceDb/src/main/java/org/lucares/performance/db/TagsToFile.java
@@ -164,7 +164,7 @@ public class TagsToFile implements AutoCloseable {
 
 			getOrInit(tags).addWriter(result);
 			
-			METRICS_LOGGER_NEW_WRITER.debug("newPdbWriter took {}ms tags: ", (System.nanoTime() - start) / 1_000_000.0, tags);
+			METRICS_LOGGER_NEW_WRITER.debug("newPdbWriter took {}ms tags: {}", (System.nanoTime() - start) / 1_000_000.0, tags);
 			
 			return result;
 		} catch (final IOException e) {