diff --git a/build/defs/udr_plugin.def b/build/defs/udr_plugin.def
new file mode 100644
index 0000000..e95cbba
--- /dev/null
+++ b/build/defs/udr_plugin.def
@@ -0,0 +1,6 @@
+;------------------------------------------------------------------------------
+; Export symbols
+;-----------
+
+EXPORTS
+ firebird_udr_plugin
diff --git a/build/defs/udr_plugin.vers b/build/defs/udr_plugin.vers
new file mode 100644
index 0000000..a4b4320
--- /dev/null
+++ b/build/defs/udr_plugin.vers
@@ -0,0 +1,10 @@
+###############################################################################
+# Export symbols
+############
+
+{
+global:
+    firebird_udr_plugin;
+local:
+    *;
+};