diff --git a/home/user/.local/bin/cleanup-directory b/home/user/.local/bin/cleanup-directory
index eb63fe3..04bc184 100755
--- a/home/user/.local/bin/cleanup-directory
+++ b/home/user/.local/bin/cleanup-directory
@@ -11,7 +11,7 @@ if [ ! -d "${directory}" ]; then
     return 1
 fi
 
-if [ -n "${DRYRUN}" ]; then
+if [ -n "${DRYRUN:-}" ]; then
     echo "Deleting files not accessed for a ${age} days:"
     find "${directory}" -mindepth 1 -atime "${age}" -not -type d -not -name cleanup.log
 
diff --git a/home/user/.local/bin/cleanup-directory-log b/home/user/.local/bin/cleanup-directory-log
index f5d74c5..c346cec 100755
--- a/home/user/.local/bin/cleanup-directory-log
+++ b/home/user/.local/bin/cleanup-directory-log
@@ -12,7 +12,7 @@ fi
 
 readonly log_file="${directory}/cleanup.log"
 
-if [ -n "${DRYRUN}" ]; then
+if [ -n "${DRYRUN:-}" ]; then
     log_file="/dev/null"
 fi