--- a/Kbuild
+++ b/Kbuild
@@ -30,7 +30,7 @@
 # Test module definition
 obj-m     := slkm.o testslkm.o
 
-ccflags-y := -I$(src)/include -I$(src) -I$(src)/src
+ccflags-y := -I$(src)/include -I$(src) -I$(src)/src -iwithprefix include
 
 # Functions in the kernel that don't have a 1-to-1 name correlation
 # __HAVE_ARCH_STRLCPY
