diff --git a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/business/bo/VocabularyBOTest.java b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/business/bo/VocabularyBOTest.java
index b898ee44df086c04a6bd1ee0642d8f46be64c77a..d6bc74d28b0f02724d1312f6e225a6f8fbd74a75 100644
--- a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/business/bo/VocabularyBOTest.java
+++ b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/business/bo/VocabularyBOTest.java
@@ -345,7 +345,7 @@ public final class VocabularyBOTest extends AbstractBOTest
         } catch (IllegalArgumentException e)
         {
             assertEquals(
-                    "Invalid vocabulary replacement because of unknown replacement: [2] -> [1]", e
+                    "Invalid vocabulary replacement because of unknown replacement: 2 -> [1]", e
                             .getMessage());
         }
         context.assertIsSatisfied();
@@ -378,7 +378,7 @@ public final class VocabularyBOTest extends AbstractBOTest
         } catch (IllegalArgumentException e)
         {
             assertEquals(
-                    "Invalid vocabulary replacement because of unknown replacement: [1] -> [3]", e
+                    "Invalid vocabulary replacement because of unknown replacement: 1 -> [3]", e
                             .getMessage());
         }
         context.assertIsSatisfied();