diff --git a/Kbuild b/Kbuild
index 06b801e..65db5be 100644
--- a/Kbuild
+++ b/Kbuild
@@ -26,9 +26,7 @@
 
 targets += $(timeconst-file)
 
-define filechk_gentimeconst
-	echo $(CONFIG_HZ) | bc -q $<
-endef
+filechk_gentimeconst = echo $(CONFIG_HZ) | bc -q $<
 
 $(timeconst-file): kernel/time/timeconst.bc FORCE
 	$(call filechk,gentimeconst)