diff --git a/java/org/slub/rosetta/dps/repository/plugin/SLUBTechnicalMetadataExtractorMediaConchPlugin.java b/java/org/slub/rosetta/dps/repository/plugin/SLUBTechnicalMetadataExtractorMediaConchPlugin.java
index 67760ae35e6e6c73c246b8de2ee7da9a3b3b4f11..699b1a7d39c26c1b2af883fba974979c0fd871d2 100644
--- a/java/org/slub/rosetta/dps/repository/plugin/SLUBTechnicalMetadataExtractorMediaConchPlugin.java
+++ b/java/org/slub/rosetta/dps/repository/plugin/SLUBTechnicalMetadataExtractorMediaConchPlugin.java
@@ -491,8 +491,8 @@ public class SLUBTechnicalMetadataExtractorMediaConchPlugin implements MDExtract
     private void checkFileExists (String filename) throws Exception {
         File f = new File(filename);
         if (! f.exists() ) {
-            System.out.println("ERROR: path=" + filename + "not available");
-            throw new Exception("ERROR: path=" + filename + "not available");
+            System.out.println("ERROR: path=" + filename + " not available");
+            throw new Exception("ERROR: path=" + filename + " not available");
         }
     }
     /** stand alone check, main file to call local installed clamd