diff --git a/mgr/Dyson/Export/AgROOT.py b/mgr/Dyson/Export/AgROOT.py
index 314ecc42791..bcf87e91ad9 100644
--- a/mgr/Dyson/Export/AgROOT.py
+++ b/mgr/Dyson/Export/AgROOT.py
@@ -687,7 +687,7 @@ class StarGeometry {
         /// Construct geometry with the specified tag, and return wrapped in a TDataSet
         static TDataSet* Construct( const char* name = "%s");
         static bool      List     ( const char* name = "%s");
-        static void      Whitelist( const char* name, int value=1 ){ whitelist[name]=value; }
+        static void      Whitelist( const char* name, int value=1 ){ whitelist[std::string(name)]=value; }
         static void      InitAgML ( const char* stacker="StarTGeoStacker");
         StarGeometry(){ /* nada */ };
         virtual ~StarGeometry(){ /* nada */ }