diff --git a/elements/automatisme/plc/sofrel/s500/FACADE_S550.elmt b/elements/automatisme/plc/sofrel/s500/facade_s500.elmt
similarity index 100%
rename from elements/automatisme/plc/sofrel/s500/FACADE_S550.elmt
rename to elements/automatisme/plc/sofrel/s500/facade_s500.elmt
diff --git a/elements/automatisme/plc/sofrel/s500/S500_ALIMENTATION.elmt b/elements/automatisme/plc/sofrel/s500/s500_alimentation.elmt
similarity index 100%
rename from elements/automatisme/plc/sofrel/s500/S500_ALIMENTATION.elmt
rename to elements/automatisme/plc/sofrel/s500/s500_alimentation.elmt
diff --git a/elements/automatisme/plc/sofrel/s500/S500_DLHF.elmt b/elements/automatisme/plc/sofrel/s500/s500_dlhf.elmt
similarity index 100%
rename from elements/automatisme/plc/sofrel/s500/S500_DLHF.elmt
rename to elements/automatisme/plc/sofrel/s500/s500_dlhf.elmt
diff --git a/elements/automatisme/plc/sofrel/s500/S500_PSTN.elmt b/elements/automatisme/plc/sofrel/s500/s500_pstn.elmt
similarity index 100%
rename from elements/automatisme/plc/sofrel/s500/S500_PSTN.elmt
rename to elements/automatisme/plc/sofrel/s500/s500_pstn.elmt