diff --git a/common/source/java/ch/systemsx/cisd/common/io/MonitoredIOStreamCopier.java b/common/source/java/ch/systemsx/cisd/common/io/MonitoredIOStreamCopier.java
index 54cfaa1a01c4e63ca335fa55899a977adf6a0a06..86be9401d8816bd0a2a9b2cc275b163bef3ca751 100644
--- a/common/source/java/ch/systemsx/cisd/common/io/MonitoredIOStreamCopier.java
+++ b/common/source/java/ch/systemsx/cisd/common/io/MonitoredIOStreamCopier.java
@@ -83,7 +83,7 @@ public class MonitoredIOStreamCopier
             if (maxQueueSize < 1)
             {
                 throw new ConfigurationFailureException("Maximum queue size " 
-                        + maxQueueSize + " should be larger than buffer size " + bufferSize + ".");
+                        + maxQueueSizeInBytes + " should be larger than buffer size " + bufferSize + ".");
             }
             queue = new LinkedBlockingQueue<WritingItem>((int) maxQueueSize);
         }