diff --git a/simgear/nasal/cppbind/detail/from_nasal_helper.hxx b/simgear/nasal/cppbind/detail/from_nasal_helper.hxx
index 16e593bf..7953ee96 100644
--- a/simgear/nasal/cppbind/detail/from_nasal_helper.hxx
+++ b/simgear/nasal/cppbind/detail/from_nasal_helper.hxx
@@ -43,7 +43,6 @@ namespace nasal
    * Thrown when converting a type from/to Nasal has failed
    */
   class bad_nasal_cast:
-    public std::bad_cast,
     public sg_exception
   {
     public: