diff --git a/definitions/grib2/localConcepts/era6/modelVersionConcept_AIFS.def b/definitions/grib2/localConcepts/era6/modelVersionConcept.AIFS.def
similarity index 100%
rename from definitions/grib2/localConcepts/era6/modelVersionConcept_AIFS.def
rename to definitions/grib2/localConcepts/era6/modelVersionConcept.AIFS.def
diff --git a/definitions/grib2/localConcepts/era6/modelVersionConcept_IFS.def b/definitions/grib2/localConcepts/era6/modelVersionConcept.IFS.def
similarity index 100%
rename from definitions/grib2/localConcepts/era6/modelVersionConcept_IFS.def
rename to definitions/grib2/localConcepts/era6/modelVersionConcept.IFS.def