diff --git a/mrmShared/linux/Makefile b/mrmShared/linux/Makefile
index 11ad20cc..072e2210 100644
--- a/mrmShared/linux/Makefile
+++ b/mrmShared/linux/Makefile
@@ -1,10 +1,10 @@
-KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+KERNEL_SRC ?= /lib/modules/$(shell uname -r)/build
 
 include CONFIG
 
 all: modules
 
 modules modules_install clean:
-	$(MAKE) -C $(KERNELDIR) DRV_VERSION='$(DRV_VERSION)' M=$(CURDIR) $@
+	$(MAKE) -C $(KERNEL_SRC) DRV_VERSION='$(DRV_VERSION)' M=$(CURDIR) $@
 
 .PHONY: all modules modules_install clean