diff --git a/org.springframework.oxm/castorbuilder.properties b/org.springframework.oxm/castorbuilder.properties
new file mode 100644
index 0000000000..7f7250717c
--- /dev/null
+++ b/org.springframework.oxm/castorbuilder.properties
@@ -0,0 +1 @@
+org.exolab.castor.builder.primitivetowrapper=true