diff --git a/Makefile b/Makefile
index c1a608a..9de4c2f 100644
--- a/Makefile
+++ b/Makefile
@@ -1615,6 +1615,7 @@
 		-o -name '*.dwo' -o -name '*.lst' \
 		-o -name '*.su'  \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
+		-o -name '*.lex.c' -o -name '*.tab.[ch]' \
 		-o -name '*.symtypes' -o -name 'modules.order' \
 		-o -name modules.builtin -o -name '.tmp_*.o.*' \
 		-o -name .cache.mk \
diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
index a88b8c9..d17ba64 100644
--- a/scripts/dtc/Makefile
+++ b/scripts/dtc/Makefile
@@ -28,7 +28,5 @@
 # dependencies on generated files need to be listed explicitly
 $(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
 
-# generated files need to include *.cmd and be cleaned explicitly
-generated-files	:= dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h
-targets		:= $(generated-files)
-clean-files	:= $(generated-files)
+# generated files need to include *.cmd
+targets := dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h
diff --git a/scripts/genksyms/Makefile b/scripts/genksyms/Makefile
index 34d6ab1..0ccac51 100644
--- a/scripts/genksyms/Makefile
+++ b/scripts/genksyms/Makefile
@@ -11,5 +11,3 @@
 
 # dependencies on generated files need to be listed explicitly
 $(obj)/lex.lex.o: $(obj)/parse.tab.h
-
-clean-files	:= lex.lex.c parse.tab.c parse.tab.h
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index f9bdd02..1dcd797 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -209,7 +209,7 @@
 
 targets		+= zconf.tab.c zconf.lex.c
 clean-files	:= qconf.moc .tmp_qtcheck .tmp_gtkcheck
-clean-files	+= zconf.tab.c zconf.lex.c gconf.glade.h
+clean-files	+= gconf.glade.h
 clean-files     += config.pot linux.pot
 
 # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)