diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/vocabulary/VocabularyRegistrationFieldSet.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/vocabulary/VocabularyRegistrationFieldSet.java
index edfa9b8dcb89197343456af90c3750dc43ea7d90..b7911d5de92e754c02dec8c096908140145c8fa4 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/vocabulary/VocabularyRegistrationFieldSet.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/vocabulary/VocabularyRegistrationFieldSet.java
@@ -242,7 +242,7 @@ public final class VocabularyRegistrationFieldSet extends FieldSet
                     new VarcharField(
                             messageProvider.getMessage(Dict.VOCABULARY_TERMS_URL_TEMPLATE), false);
             result.setAutoValidate(false);
-            result.setEmptyText("http://www.ebi.ac.uk/QuickGO/GTerm?id=$term$");
+            result.setEmptyText("for example http://www.ebi.ac.uk/QuickGO/GTerm?id=$term$");
             result.setRegex(".*\\$term\\$.*");
             result.getMessages().setRegexText(
                     "URL template must contain '$term$', "