diff --git a/src/Makefile b/src/Makefile
index 2eff8a93..92be64e2 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,7 +1,7 @@
 # Main code build rules
 
-src-y += sched.c command.c basecmd.c debugcmds.c initial_pins.c
-src-$(CONFIG_HAVE_GPIO) += gpiocmds.c stepper.c endstop.c
+src-y += sched.c command.c basecmd.c debugcmds.c
+src-$(CONFIG_HAVE_GPIO) += initial_pins.c gpiocmds.c stepper.c endstop.c
 src-$(CONFIG_HAVE_GPIO_ADC) += adccmds.c
 src-$(CONFIG_HAVE_GPIO_SPI) += spicmds.c thermocouple.c
 src-$(CONFIG_HAVE_GPIO_I2C) += i2ccmds.c