diff --git a/app/monitor-check b/app/monitor-check
index 823e926..1f5cf42 100644
--- a/app/monitor-check
+++ b/app/monitor-check
@@ -19,7 +19,7 @@ run_command() {
 
   # Run the health check. Return http_code and body.
   response=$(curl --location --max-redirs 7 --user-agent "$user_agent" --write-out "|%{num_redirects}|%{http_code}" --max-time 30 --compressed --silent $url)
-  response_last_line=$( echo -e "$response" | tail -n1 )
+  response_last_line=$( printf "%s\n" "$response" | tail -n1 )
 
   # Pull out number of redirects
   num_redirects=$( echo -e "$response_last_line" | perl -ne '/.*\|(\d+)\|(\d+)$/&& print $1' )
@@ -28,7 +28,7 @@ run_command() {
   http_code=$( echo -e "$response_last_line" | perl -ne '/.*\|(\d+)\|(\d+)$/&& print $2' )
 
   # Pull out </html> from bottom if found. Valid code should contain </html> near the bottom.
-  html_end_tag=$( echo -e "$response" | tail -n12 | perl -wnE'say for /<\/html>/g' )
+  html_end_tag=$( printf "%s\n" "$response"| tail -n12 | perl -wnE'say for /<\/html>/g' )
 
   # check if </html> found
   if [[ $html_end_tag == "</html>" ]]; then