Index: ICOSA_LMDZ/src/phylmd/icolmdz_etat0.f90
===================================================================
--- ICOSA_LMDZ/src/phylmd/icolmdz_etat0.f90	(revision 4969)
+++ ICOSA_LMDZ/src/phylmd/icolmdz_etat0.f90	(revision 4970)
@@ -31,5 +31,6 @@
             CALL xios_set_field_attr("temp_db", field_ref="temp_db_legacy")
             CALL xios_set_field_attr("q_db", field_ref="q_db_legacy")
-         ELSE IF (TRIM(etat0_lmdz) == "ERA5_forcing") THEN
+            IF (using_xios3) CALL xios_set_axis_attr("lev_ecdyn", axis_ref="u_db_legacy::")
+          ELSE IF (TRIM(etat0_lmdz) == "ERA5_forcing") THEN
             CALL xios_set_filegroup_attr("read_files_ERA5_forcing", enabled=.TRUE.)
             CALL xios_set_field_attr("relief_db", field_ref="relief_db_forcing")
@@ -41,4 +42,5 @@
             CALL xios_set_field_attr("temp_db", field_ref="temp_db_forcing")
             CALL xios_set_field_attr("q_db", field_ref="q_db_forcing")
+            IF (using_xios3) CALL xios_set_axis_attr("lev_ecdyn", axis_ref="u_db_forcing::")
          ELSE
         PRINT*,"Bad selector for variable <etat0_lmdz> ",TRIM(etat0_lmdz), " option are <legacy> (default), <ERA5_forcing>"