diff --git a/retention-helper/retention-helper.sh b/retention-helper/retention-helper.sh
index 44ddd70..83bfc04 100644
--- a/retention-helper/retention-helper.sh
+++ b/retention-helper/retention-helper.sh
@@ -42,7 +42,7 @@ HELP
 }
 
 get_atime_of_file() {
-  stat --format=%X "${1}"
+  stat --format=%X "${1}" 2> /dev/null
 }
 
 get_xattr_of_file() {
@@ -50,17 +50,20 @@ get_xattr_of_file() {
 }
 
 find_files_with_atime() {
-  for FILE in $(find "${DIRECTORY}" -type f); do
+  while read -r FILE; do
     ATIME_FILE=$(get_atime_of_file "${FILE}")
+    if [ "${ATIME_FILE}" == "" ]; then
+      continue
+    fi
     if [ ${ATIME_FILE} -ge ${ATIME_SEARCH} ]; then
       echo "${FILE}"
     fi
-  done
+  done <<< $(find "${DIRECTORY}" -type f)
 }
 
 
 find_files_with_retention() {
-  for FILE in $(find "${DIRECTORY}" -type f); do
+  while read -r FILE; do
     RETENTION_FILE=$(get_xattr_of_file "${FILE}" "trusted.worm.attr" | grep -o '[0-9]\+$')
     if [ "${RETENTION_FILE}" == "" ]; then
       continue
@@ -69,7 +72,7 @@ find_files_with_retention() {
     if [ ${RETENTION_FILE} -eq ${RETENTION_SEARCH} ]; then
       echo "${FILE}"
     fi
-  done
+  done <<< $(find "${DIRECTORY}" -type f)
 }
 
 
@@ -86,13 +89,16 @@ set_atime() {
 
 
 show_atime_retention() {
-  for FILE in $(find "${DIRECTORY}" -type f); do
+  while read -r FILE; do
     ATIME=$(get_atime_of_file "${FILE}")
+    if [ "${ATIME}" == "" ]; then
+      continue
+    fi
     TRUSTED_WORM_ATTR=$(get_xattr_of_file "${FILE}" "trusted.worm.attr" | grep -o '[0-9]\+$')
     echo "${FILE}"
     echo "  atime:             $(date --date=@${ATIME}) || ${ATIME}"
     echo "  trusted.worm.attr: ${TRUSTED_WORM_ATTR}"
-  done
+  done <<< $(find "${DIRECTORY}" -type f)
 }
 
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