diff --git a/modbus-versionscript.lds b/modbus-versionscript.lds
new file mode 100644
index 0000000..ea4858f
--- /dev/null
+++ b/modbus-versionscript.lds
@@ -0,0 +1,5 @@
+{
+  global:
+    modbus_*;
+  local: *;
+};