diff --git a/evocheck.sh b/evocheck.sh
index 21672f2..69e2cf9 100755
--- a/evocheck.sh
+++ b/evocheck.sh
@@ -236,11 +236,11 @@ check_debiansecurity() {
     if is_debian_bullseye; then
         # https://www.debian.org/releases/bullseye/amd64/release-notes/ch-information.html#security-archive
         # https://www.debian.org/security/
-        pattern="^deb http://security\.debian\.org/debian-security/? bullseye-security main"
+        pattern="^deb  ?(\[.*\])? ?http://security\.debian\.org/debian-security/? bullseye-security main"
     elif is_debian_buster; then
-        pattern="^deb http://security\.debian\.org/debian-security/? buster/updates main"
+        pattern="^deb  ?(\[.*\])? ?http://security\.debian\.org/debian-security/? buster/updates main"
     elif is_debian_stretch; then
-        pattern="^deb http://security\.debian\.org/debian-security/? stretch/updates main"
+        pattern="^deb  ?(\[.*\])? ?http://security\.debian\.org/debian-security/? stretch/updates main"
     else
         pattern="^deb.*security"
     fi