diff --git a/DDCore/include/DD4hep/BitFieldCoder.h b/DDCore/include/DD4hep/BitFieldCoder.h
index fb6d73b691f4f4fb55dd347f156840245e807976..20625e0128a224de80c05fed2beee426d265599a 100644
--- a/DDCore/include/DD4hep/BitFieldCoder.h
+++ b/DDCore/include/DD4hep/BitFieldCoder.h
@@ -10,8 +10,8 @@
 // Author     : M.Frank
 //
 //==========================================================================
-#ifndef DD4HEP_DDCORE_BITFIELD64_H
-#define DD4HEP_DDCORE_BITFIELD64_H
+#ifndef DD4HEP_DDCORE_BITFIELDCODER_H
+#define DD4HEP_DDCORE_BITFIELDCODER_H
 
 // Framework include files
 #include "DDSegmentation/BitFieldCoder.h"
@@ -27,4 +27,4 @@ namespace dd4hep {
 
   }       /* End namespace detail           */
 }         /* End namespace dd4hep             */
-#endif    /* DD4HEP_DDCORE_BITFIELD64_H     */
+#endif    /* DD4HEP_DDCORE_BITFIELDCODER_H     */