plugins/nmount | 5 +++++

diff --git a/plugins/nmount b/plugins/nmount
index a0782e450641386d672a01986431ad8f0d7a7c55..e08966a0977ffc00da47a2dd4f697fc4dafaa5e1 100755
--- a/plugins/nmount
+++ b/plugins/nmount
@@ -10,6 +10,11 @@ lsblk
 echo
 echo -n "device (e.g. sdc2): "
 read dev
+
+if [ -z "$dev" ]; then
+    exit 1
+fi
+
 echo
 
 if grep -qs "$dev " /proc/mounts; then