diff --git a/common/source/java/ch/systemsx/cisd/common/annotation/CollectionMapping.java b/common/source/java/ch/systemsx/cisd/common/annotation/CollectionMapping.java
index 1792e6091f5a08e672943bed80564a57d7db0669..598b66c704ccacae549b1de43ebfc670b2cd0e3b 100644
--- a/common/source/java/ch/systemsx/cisd/common/annotation/CollectionMapping.java
+++ b/common/source/java/ch/systemsx/cisd/common/annotation/CollectionMapping.java
@@ -37,6 +37,8 @@ public @interface CollectionMapping
     /**
      * The concrete class to use as a collection.
      */
+    @SuppressWarnings("unchecked")
+    // No way to avoid the warning since the compiler doesn't accept something like ArrayList<String>.class
     Class<? extends Collection> collectionClass();
 
     /**