Fails to build kernel module

[kozross]

I get the following:

[100%] Generating gdev/gdev.ko
make[3]: Entering directory '/usr/lib/modules/4.14.3-1-ARCH/build'
make[3]: *** No rule to make target 'modules'.  Stop.
make[3]: Leaving directory '/usr/lib/modules/4.14.3-1-ARCH/build'
make[2]: *** [mod/CMakeFiles/gdev_module.dir/build.make:108: mod/gdev/gdev.ko] Error 2
make[2]: Leaving directory '/home/koz/gdev/release'
make[1]: *** [CMakeFiles/Makefile2:235: mod/CMakeFiles/gdev_module.dir/all] Error 2
make[1]: Leaving directory '/home/koz/gdev/release'
make: *** [Makefile:130: all] Error 2
make: Leaving directory '/home/koz/gdev/release'