diff --git a/firmware/common/Makefile_inc.mk b/firmware/common/Makefile_inc.mk
index 1bf6f02f..bdabfbbd 100644
--- a/firmware/common/Makefile_inc.mk
+++ b/firmware/common/Makefile_inc.mk
@@ -110,7 +110,7 @@ program: $(BINARY).dfu
 
 %.elf: $(OBJ) $(LDSCRIPT)
 	@#printf "  LD      $(subst $(shell pwd)/,,$(@))\n"
-	$(Q)$(LD) $(LDFLAGS) -o $(*).elf $(OBJ) -lopencm3_lpc43xx
+	$(Q)$(LD) $(LDFLAGS) -o $(*).elf $(OBJ) -lopencm3_lpc43xx -lm -lc -lnosys
 
 %.o: %.c Makefile
 	@#printf "  CC      $(subst $(shell pwd)/,,$(@))\n"