diff --git a/src/run.bash b/src/run.bash
index ff2e88f0048..ddd55826f7c 100755
--- a/src/run.bash
+++ b/src/run.bash
@@ -74,6 +74,13 @@ make clean
 ./test.bash
 ) || exit $?
 
+(xcd ../doc/codewalk
+# TODO: test these too.
+go build pig.go
+go build urlpoll.go
+rm -f pig urlpoll
+) || exit $?
+
 echo
 echo '#' ../misc/dashboard/builder ../misc/goplay
 go build ../misc/dashboard/builder ../misc/goplay