diff --git a/src/LIB/SURCOUCHE/src/fmread_ll.f90 b/src/LIB/SURCOUCHE/src/mode_io_field_read.f90
similarity index 100%
rename from src/LIB/SURCOUCHE/src/fmread_ll.f90
rename to src/LIB/SURCOUCHE/src/mode_io_field_read.f90
diff --git a/src/LIB/SURCOUCHE/src/fmwrit_ll.f90 b/src/LIB/SURCOUCHE/src/mode_io_field_write.f90
similarity index 100%
rename from src/LIB/SURCOUCHE/src/fmwrit_ll.f90
rename to src/LIB/SURCOUCHE/src/mode_io_field_write.f90