diff --git a/Makefile b/Makefile
index 887ba28..2467aa0 100644
--- a/Makefile
+++ b/Makefile
@@ -109,10 +109,9 @@
 .PHONY: $(MAKECMDGOALS)
 
 $(filter-out _all,$(MAKECMDGOALS)) _all:
-	$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT)		\
-	KBUILD_SRC=$(CURDIR)	     KBUILD_VERBOSE=$(KBUILD_VERBOSE)	\
-	KBUILD_CHECK=$(KBUILD_CHECK) KBUILD_EXTMOD="$(KBUILD_EXTMOD)"	\
-        -f $(CURDIR)/Makefile $@
+	$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
+	KBUILD_SRC=$(CURDIR) \
+	KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
 
 # Leave processing to above invocation of make
 skip-makefile := 1