diff --git a/qqq-middleware-picocli/src/main/java/com/kingsrook/qqq/frontend/picocli/QPicoCliImplementation.java b/qqq-middleware-picocli/src/main/java/com/kingsrook/qqq/frontend/picocli/QPicoCliImplementation.java
index 093a5f0d..bc47eeb9 100644
--- a/qqq-middleware-picocli/src/main/java/com/kingsrook/qqq/frontend/picocli/QPicoCliImplementation.java
+++ b/qqq-middleware-picocli/src/main/java/com/kingsrook/qqq/frontend/picocli/QPicoCliImplementation.java
@@ -892,7 +892,8 @@ public class QPicoCliImplementation
 
       if(StringUtils.hasContent(primaryKeyOption))
       {
-         deleteInput.setPrimaryKeys(Arrays.asList(primaryKeyOption.split(",")));
+         List<Serializable> primaryKeys = new ArrayList<>(Arrays.asList(primaryKeyOption.split(",")));
+         deleteInput.setPrimaryKeys(primaryKeys);
       }
       else if(criteria.length > 0)
       {