diff --git a/03/Makefile b/03-memory-mapping/Makefile
similarity index 100%
rename from 03/Makefile
rename to 03-memory-mapping/Makefile
diff --git a/03/main.c b/03-memory-mapping/main.c
similarity index 100%
rename from 03/main.c
rename to 03-memory-mapping/main.c