diff --git a/functions/helper_lib.sh b/functions/helper_lib.sh
index 005cd9c..963b149 100644
--- a/functions/helper_lib.sh
+++ b/functions/helper_lib.sh
@@ -125,7 +125,7 @@ get_docker_configuration_file_args() {
   if "$HAVE_JQ"; then
     jq --monochrome-output --raw-output ".[\"${OPTION}\"]" "$CONFIG_FILE"
   else
-    cat "$CONFIG_FILE" | tr { '\n' | tr , '\n' | tr } '\n' | grep "$OPTION" | sed 's/.*://g' | tr -d '" ',
+    cat "$CONFIG_FILE" | tr , '\n' | grep "$OPTION" | sed 's/.*://g' | tr -d '" ',
   fi
 }
 
diff --git a/tests/2_docker_daemon_configuration.sh b/tests/2_docker_daemon_configuration.sh
index cc187d6..000381f 100644
--- a/tests/2_docker_daemon_configuration.sh
+++ b/tests/2_docker_daemon_configuration.sh
@@ -34,7 +34,7 @@ check_2_2() {
     logcheckresult "PASS"
     return
   fi
-  if get_docker_configuration_file_args 'icc' | grep "false" >/dev/null 2>&1; then
+  if [[ $(get_docker_configuration_file_args 'icc' | grep "false") ]] && [[ $(get_docker_configuration_file_args 'icc' | grep "false") != "null" ]] ; then
     pass -s "$check"
     logcheckresult "PASS"
     return
@@ -93,7 +93,7 @@ check_2_4() {
     logcheckresult "WARN"
     return
   fi
-  if get_docker_configuration_file_args 'iptables' | grep "false" >/dev/null 2>&1; then
+  if [[ $(get_docker_configuration_file_args 'iptables' | grep "false") ]] && [[ $(get_docker_configuration_file_args 'iptables' | grep "false") != "null" ]] ; then
     warn -s "$check"
     logcheckresult "WARN"
     return
@@ -115,12 +115,7 @@ check_2_5() {
     logcheckresult "WARN"
     return
   fi
-  if ! [ -z "$(get_docker_configuration_file_args 'insecure-registries')" ]; then
-    if get_docker_configuration_file_args 'insecure-registries' | grep '\[]' >/dev/null 2>&1; then
-      pass -s "$check"
-      logcheckresult "PASS"
-      return
-    fi
+  if [[ $(get_docker_configuration_file_args 'insecure-registries' | grep -v '\[]') ]] && [[ $(get_docker_configuration_file_args 'insecure-registries' | grep -v '\[]') != "null" ]] ; then
     warn -s "$check"
     logcheckresult "WARN"
     return
@@ -187,7 +182,7 @@ check_2_8() {
   local check="$id - $desc"
   starttestjson "$id" "$desc"
 
-  if get_docker_configuration_file_args 'default-ulimit' | grep -v '{}' >/dev/null 2>&1; then
+  if [[ $(get_docker_configuration_file_args 'default-ulimits' | grep -v '{}') ]] && [[ $(get_docker_configuration_file_args 'default-ulimits' | grep -v '{}') != "null" ]] ; then
     pass -c "$check"
     logcheckresult "PASS"
     return
@@ -210,7 +205,7 @@ check_2_9() {
   local check="$id - $desc"
   starttestjson "$id" "$desc"
 
-  if get_docker_configuration_file_args 'userns-remap' | grep -v '""'; then
+  if [[ $(get_docker_configuration_file_args 'userns-remap' | grep -v '""') ]] && [[ $(get_docker_configuration_file_args 'userns-remap' | grep -v '""') != "null" ]] ; then
     pass -s "$check"
     logcheckresult "PASS"
     return
@@ -278,7 +273,7 @@ check_2_12() {
   local check="$id - $desc"
   starttestjson "$id" "$desc"
 
-  if get_docker_configuration_file_args 'authorization-plugins' | grep -v '\[]'; then
+  if [[ $(get_docker_configuration_file_args 'authorization-plugins' | grep -v '\[]') ]] && [[ $(get_docker_configuration_file_args 'authorization-plugins' | grep -v '\[]') != "null" ]] ; then
     pass -s "$check"
     logcheckresult "PASS"
     return