diff --git a/doc/codelab/wiki/Makefile b/doc/codelab/wiki/Makefile
index 32dc1a1c29..55210116d9 100644
--- a/doc/codelab/wiki/Makefile
+++ b/doc/codelab/wiki/Makefile
@@ -8,7 +8,7 @@ all: index.html
 
 include ../../../src/Make.common
 
-CLEANFILES+=index.html srcextract.bin htmlify.bin get.bin
+CLEANFILES+=srcextract.bin htmlify.bin get.bin
 
 index.html: wiki.html srcextract.bin htmlify.bin
 	PATH=.:$$PATH awk '/^!/{system(substr($$0,2)); next} {print}' < wiki.html | tr -d '\r' > index.html
diff --git a/src/clean.bash b/src/clean.bash
index 1955b583b3..e4e2f8f55a 100755
--- a/src/clean.bash
+++ b/src/clean.bash
@@ -22,6 +22,8 @@ rm -f "$GOROOT"/lib/*.a
 for i in lib9 libbio libmach cmd pkg \
 	../misc/cgo/gmp ../misc/cgo/stdio \
 	../misc/cgo/life ../misc/cgo/test \
+	../misc/dashboard/builder ../misc/goplay\
+	../doc/codelab/wiki\
 	../test/bench ../test/garbage
 do
 	# Do not use gomake here. It may not be available.