diff --git a/Makefile b/Makefile
index a51a4371..6bffe160 100644
--- a/Makefile
+++ b/Makefile
@@ -71,7 +71,6 @@ SOURCES += src/version.c
 SOURCES += src/syscalls.c
 
 SOURCES += shared/crc8.c
-SOURCES += shared/crc16.c
 SOURCES += shared/angle.c
 SOURCES += shared/hal.c
 SOURCES += shared/commands.c
diff --git a/shared/crc16.c b/shared/old/crc16.c
similarity index 100%
rename from shared/crc16.c
rename to shared/old/crc16.c
diff --git a/shared/crc16.h b/shared/old/crc16.h
similarity index 100%
rename from shared/crc16.h
rename to shared/old/crc16.h
diff --git a/shared/crc32.c b/shared/old/crc32.c
similarity index 100%
rename from shared/crc32.c
rename to shared/old/crc32.c
diff --git a/shared/crc32.h b/shared/old/crc32.h
similarity index 100%
rename from shared/crc32.h
rename to shared/old/crc32.h
diff --git a/stm32f303/Makefile b/stm32f303/Makefile
index 220a338d..3d80994f 100644
--- a/stm32f303/Makefile
+++ b/stm32f303/Makefile
@@ -53,7 +53,6 @@ SOURCES += $(COMPS)
 INCDIRS += shared
 SOURCES += shared/ringbuf.c
 SOURCES += shared/crc8.c
-SOURCES += shared/crc16.c
 SOURCES += shared/angle.c
 SOURCES += shared/hal.c
 SOURCES += shared/commands.c