diff --git a/examples/tunnel/tunneld/test.sh b/examples/tunnel/tunneld/test.sh
index 9800b58..dcf1629 100755
--- a/examples/tunnel/tunneld/test.sh
+++ b/examples/tunnel/tunneld/test.sh
@@ -12,14 +12,15 @@
 
 echo "Test directory: $(dirname $0)"
 
-builddir=$(mktemp -d --tmpdir=${toplevel}/go)
+workdir=$(mktemp -d ${toplevel}/go/tmp.XXXXXXXXXXX)
+export TMPDIR=$workdir
 trap onexit EXIT
 
 onexit() {
 	cd /
 	exec 2> /dev/null
 	kill -9 $(jobs -p)
-	rm -rf $builddir
+	rm -rf $workdir
 }
 
 FAIL() {
@@ -34,7 +35,7 @@
 }
 
 # Build binaries.
-cd $builddir
+cd $workdir
 $go build veyron/examples/tunnel/tunneld || FAIL "line $LINENO: failed to build tunneld"
 $go build veyron/examples/tunnel/vsh || FAIL "line $LINENO: failed to build vsh"
 $go build veyron/services/mounttable/mounttabled || FAIL "line $LINENO: failed to build mounttabled"
@@ -42,7 +43,7 @@
 $go build veyron/tools/identity || FAIL "line $LINENO: failed to build identity"
 
 # Start mounttabled and find its endpoint.
-mtlog=$(mktemp --tmpdir=.)
+mtlog=${workdir}/mt.log
 ./mounttabled --address=localhost:0 > $mtlog 2>&1 &
 
 for i in 1 2 3 4; do
@@ -54,14 +55,14 @@
 done
 [ -z $ep ] && FAIL "line $LINENO: no mounttable server"
 
-tmpid=$(mktemp --tmpdir=.)
+tmpid=$workdir/id
 ./identity generate test > $tmpid
 
 export NAMESPACE_ROOT=$ep
 export VEYRON_IDENTITY=$tmpid
 
 # Start tunneld and find its endpoint.
-tunlog=$(mktemp --tmpdir=.)
+tunlog=$workdir/tunnel.log
 ./tunneld --address=localhost:0 > $tunlog 2>&1 &
 
 for i in 1 2 3 4; do
diff --git a/services/mounttable/mounttabled/test.sh b/services/mounttable/mounttabled/test.sh
index 1f15be1..9e98748 100755
--- a/services/mounttable/mounttabled/test.sh
+++ b/services/mounttable/mounttabled/test.sh
@@ -15,15 +15,15 @@
 
 echo "Test directory: $(dirname $0)"
 
-builddir=$(mktemp -d --tmpdir=${toplevel}/go)
-tmplog=$(mktemp)
+workdir=$(mktemp -d ${toplevel}/go/tmp.XXXXXXXXXX)
+export TMPDIR=$workdir
 trap onexit EXIT
 
 onexit() {
 	cd /
 	exec 2> /dev/null
 	kill -9 $(jobs -p)
-	rm -rf $builddir $tmplog
+	rm -rf $workdir
 }
 
 FAIL() {
@@ -38,16 +38,17 @@
 }
 
 # Build mounttabled and mounttable binaries.
-cd $builddir
+cd $workdir
 $go build veyron/services/mounttable/mounttabled || FAIL "line $LINENO: failed to build mounttabled"
 $go build veyron/tools/mounttable || FAIL "line $LINENO: failed to build mounttable"
 
 # Start mounttabled and find its endpoint.
 nhname=test$$
-./mounttabled --address=localhost:0 --neighborhood_name=$nhname > $tmplog 2>&1 &
+mtlog=$workdir/mt.log
+./mounttabled --address=localhost:0 --neighborhood_name=$nhname > $mtlog 2>&1 &
 
 for i in 1 2 3 4; do
-	ep=$(grep "Mount table service at:" $tmplog | sed -re 's/^.*endpoint: ([^ ]*).*/\1/')
+	ep=$(grep "Mount table service at:" $mtlog | sed -re 's/^.*endpoint: ([^ ]*).*/\1/')
 	if [ -n "$ep" ]; then
 		break
 	fi