diff --git a/docker-bench-security.sh b/docker-bench-security.sh
index da6819e..be9e842 100755
--- a/docker-bench-security.sh
+++ b/docker-bench-security.sh
@@ -138,7 +138,7 @@ main () {
     cis
   elif [ -z "$check" ] && [ "$checkexclude" ]; then
     checkexcluded="$(echo ",$checkexclude" | sed -e 's/^/\^/g' -e 's/,/\$|/g' -e 's/$/\$/g')"
-    for c in $(grep 'check_[0-9]' functions_lib.sh | grep -vE "$checkexcluded"); do
+    for c in $(grep -E 'check_[0-9]|check_[a-z]' functions_lib.sh | grep -vE "$checkexcluded"); do
       "$c"
     done
   else