diff --git a/check_curl.sh b/check_curl.sh
index 55e0b71..de03c36 100755
--- a/check_curl.sh
+++ b/check_curl.sh
@@ -16,7 +16,8 @@ usage() {
   -t Timeout in seconds
   -s Ignore the response status code.
   -e Expected status code.
-  -S Sanitize HTML when printing to console. Good for Icinga2 Web."
+  -S Sanitize HTML when printing to console. Good for Icinga2 Web.
+  -n Don't return any perfdata if the status code was not 200."
   exit 3
 }
 
@@ -33,9 +34,10 @@ TIMEOUT="30"
 HTTP_METHOD="-X GET"
 EXPECTED_STATUS_CODE=""
 SANITIZE_HTML=false
+DISABLE_PERFDATA=false
 
 # Parse arguments
-while getopts "u:w:c:C:LH:M:IpR:st:e:hS" opt; do
+while getopts "u:w:c:C:LH:M:IpR:st:e:hSn" opt; do
   case $opt in
   u)
     URL="$OPTARG"
@@ -82,6 +84,9 @@ while getopts "u:w:c:C:LH:M:IpR:st:e:hS" opt; do
   S)
     SANITIZE_HTML=true
     ;;
+  n)
+    DISABLE_PERFDATA=true
+    ;;
   *)
     echo "Invalid option: -$OPTARG" >&2
     usage
@@ -415,7 +420,7 @@ fi
 # Check critical string
 BODY_CONTAINS=" "
 if [ -n "$CRIT_STRING" ]; then
-  BODY=$(curl -s $FOLLOW_REDIRECTS $INSECURE $HEADERS $RESOLVE $TIMEOUT $URL)
+  BODY=$(curl -s $FOLLOW_REDIRECTS $INSECURE "$HEADERS" "$RESOLVE" "$TIMEOUT" "$URL")
   # shellcheck disable=SC2076
   if ! [[ $BODY =~ "$CRIT_STRING" ]]; then
       if $SANITIZE_HTML; then
@@ -429,5 +434,12 @@ if [ -n "$CRIT_STRING" ]; then
 fi
 
 # All checks passed
-echo "OK - response time was $RESPONSE_TIME seconds, code $HTTP_CODE.${BODY_CONTAINS}-> $URL | $perfdata"
+
+if $DISABLE_PERFDATA && [ "$HTTP_CODE" != 200 ]; then
+  perfdata_str=""
+else
+  perfdata_str="| $perfdata"
+fi
+
+echo "OK - response time was $RESPONSE_TIME seconds, code $HTTP_CODE.${BODY_CONTAINS}-> $URL $perfdata_str"
 exit 0