diff --git a/performanceDb/src/main/java/org/lucares/performance/db/PerformanceDb.java b/performanceDb/src/main/java/org/lucares/performance/db/PerformanceDb.java
index 00e8932..e8aab8f 100644
--- a/performanceDb/src/main/java/org/lucares/performance/db/PerformanceDb.java
+++ b/performanceDb/src/main/java/org/lucares/performance/db/PerformanceDb.java
@@ -121,7 +121,7 @@ public class PerformanceDb implements AutoCloseable {
                             final long duration = end - lastSync;
                             final long entriesPerSecond = (long) (insertionsSinceLastSync / (duration / 1000.0));
 
-                            METRICS_LOGGER.debug(String.format(Locale.US, "inserting %d/s ; total: %,d; last: %s",
+                            METRICS_LOGGER.debug(String.format(Locale.US, "inserting %,11d/s ; total: %,d; last: %s",
                                     entriesPerSecond, count, entry));
 
                             lastSync = System.currentTimeMillis();