diff --git a/src/osgPlugins/ive/ProxyNode.cpp b/src/osgPlugins/ive/ProxyNode.cpp
index 7928f3b13..2d67714c9 100644
--- a/src/osgPlugins/ive/ProxyNode.cpp
+++ b/src/osgPlugins/ive/ProxyNode.cpp
@@ -129,7 +129,7 @@ void ProxyNode::write(DataOutputStream* out)
                     else
                     {
                         std::string ivename = writeDirectory + osgDB::getStrippedName(getFileName(i)) +".ive";
-                        if (!out->getExternalFileWritten(getFileName(i)))
+                        if (!out->getExternalFileWritten(ivename))
                         {
                             osgDB::writeNodeFile(*getChild(i), ivename);
                             out->setExternalFileWritten(ivename, true);
diff --git a/src/osgPlugins/osg/ProxyNode.cpp b/src/osgPlugins/osg/ProxyNode.cpp
index 83469ca3c..2f953cfe0 100644
--- a/src/osgPlugins/osg/ProxyNode.cpp
+++ b/src/osgPlugins/osg/ProxyNode.cpp
@@ -250,7 +250,7 @@ bool ProxyNode_writeLocalData(const Object& obj, Output& fw)
                     if (!fw.getExternalFileWritten(origname))
                     {
                         osgDB::writeNodeFile(*proxyNode.getChild(i), origname);
-                        fw.setExternalFileWritten(proxyNode.getFileName(i), true);
+                        fw.setExternalFileWritten(origname, true);
                     }
                 }
                 else