diff --git a/src/main/groovy/life/qbic/datamodel/dtos/business/services/ProductUnit.groovy b/src/main/groovy/life/qbic/datamodel/dtos/business/services/ProductUnit.groovy
index fe75aa02b..6cd57dd58 100644
--- a/src/main/groovy/life/qbic/datamodel/dtos/business/services/ProductUnit.groovy
+++ b/src/main/groovy/life/qbic/datamodel/dtos/business/services/ProductUnit.groovy
@@ -22,7 +22,8 @@ enum ProductUnit {
   PER_500_ML("500 milliliter"),
   PER_COMPARISON("Comparison"),
   PER_FLOW_CELL("Flow cell"),
-  PER_BATCH("Batch")
+  PER_BATCH("Batch"),
+  PER_VIAL("Vial")
 
   /**
    Holds the String value of the enum