diff --git a/AltairZ80/altairZ80_cpu.c b/AltairZ80/altairz80_cpu.c
similarity index 100%
rename from AltairZ80/altairZ80_cpu.c
rename to AltairZ80/altairz80_cpu.c
diff --git a/AltairZ80/altairZ80_defs.h b/AltairZ80/altairz80_defs.h
similarity index 100%
rename from AltairZ80/altairZ80_defs.h
rename to AltairZ80/altairz80_defs.h
diff --git a/AltairZ80/altairZ80_dsk.c b/AltairZ80/altairz80_dsk.c
similarity index 100%
rename from AltairZ80/altairZ80_dsk.c
rename to AltairZ80/altairz80_dsk.c
diff --git a/AltairZ80/altairZ80_sys.c b/AltairZ80/altairz80_sys.c
similarity index 100%
rename from AltairZ80/altairZ80_sys.c
rename to AltairZ80/altairz80_sys.c