diff --git a/include/tests_firewalls b/include/tests_firewalls
index 25f3dff3..f55f74e3 100644
--- a/include/tests_firewalls
+++ b/include/tests_firewalls
@@ -165,17 +165,19 @@
                 if [ ! "${SORTBINARY}" = "" ]; then eq="$( echo "${errqueue}" | ${SORTBINARY} -u )"; else eq="${errqueue}"; fi
                 echo "${eq}" | while IFS="\n" read -r eql
                 do
-                    set -- ${eql}
-                    while [ $# -gt 0 ]
-                    do
-                        LogText "Result: Found ${3} for ${2} (table: ${1})"
-                        Display --indent 6 --text "- Checking chain ${2} (table: ${1}, target: ${3})" --result "${3}" --color "${4}"
-                        if [ "${3}" = "NFQUEUE" ]
-                        then
-                            ReportSuggestion "${TEST_NO}" "Consider avoid ${3} target if possible (iptables chain ${2}, table: ${1})"
-                        fi
-                        shift 4
-                    done
+                    if [ ! "$eql" = "" ]
+                    then
+                        set -- ${eql}
+                        while [ $# -gt 0 ]
+                        do
+                            Display --indent 6 --text "- Checking chain ${2} (table: ${1}, target: ${3})" --result "${3}" --color "${4}"
+                            if [ "${3}" = "NFQUEUE" ]
+                            then
+                                ReportSuggestion "${TEST_NO}" "Consider avoid ${3} target if possible (iptables chain ${2}, table: ${1})"
+                            fi
+                            shift 4
+                        done
+                    fi
                 done
             }
         done