diff --git a/nvm.sh b/nvm.sh
index 99b47cd..472b20d 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -514,6 +514,7 @@ nvm_remote_versions() {
   local NVM_LS_REMOTE_IOJS_EXIT_CODE
   NVM_LS_REMOTE_IOJS_EXIT_CODE=0
   local NVM_LS_REMOTE_IOJS_OUTPUT
+  NVM_LS_REMOTE_IOJS_OUTPUT=
   if [ -z "${NVM_LTS-}" ] && ( \
     [ -z "${NVM_FLAVOR-}" ] || [ "${NVM_FLAVOR-}" = "${NVM_IOJS_PREFIX}" ] \
   ); then
diff --git a/test/installation_node/install LTS b/test/installation_node/install LTS
index d0c07a2..e5638e2 100755
--- a/test/installation_node/install LTS	
+++ b/test/installation_node/install LTS	
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -ex
+set -eux
 
 die () { echo "$@" ; exit 1; }