diff --git a/scope b/scope
index 942eb8a48..e85a6200d 100755
--- a/scope
+++ b/scope
@@ -27,7 +27,7 @@ HOSTNAME=scope
 DOMAINNAME=weave.local
 FQDN=$HOSTNAME.$DOMAINNAME
 DOCKER_BRIDGE=${DOCKER_BRIDGE:-docker0}
-WEAVE=$(which weave)
+WEAVE=$(set +e; which weave)
 IP_REGEXP="[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
 IP_ADDR_CMD="find /sys/class/net -type l | xargs -n1 basename | grep -vE 'docker|veth|lo' | \
     xargs -n1 ip addr show | grep inet | awk '{ print \$2 }' | grep -oE '$IP_REGEXP'"