diff --git a/IPtProxy.go/IPtProxy.go b/IPtProxy.go/IPtProxy.go
index f57463e9bd9df3d65968910a90fd3f0a433da902..5554d3d55186d61ca90b3570af540b94b7fd21c6 100644
--- a/IPtProxy.go/IPtProxy.go
+++ b/IPtProxy.go/IPtProxy.go
@@ -91,6 +91,9 @@ func init() {
 	StateLocation += "/pt_state"
 }
 
+// Obfs4ProxyVersion - the version of obfs4Proxy bundled with IPtProxy
+const Obfs4ProxyVersion = obfs4proxy.obfs4proxyVersion
+
 // StartObfs4Proxy - Start the Obfs4Proxy.
 //
 // This will test, if the default ports are available. If not, it will increment them until there is.