diff --git a/bin/tests/system/nslookup/tests.sh b/bin/tests/system/nslookup/tests.sh
index c68b5cfc09..32430320c9 100644
--- a/bin/tests/system/nslookup/tests.sh
+++ b/bin/tests/system/nslookup/tests.sh
@@ -101,7 +101,7 @@ lines=$(grep -c "Server:" nslookup.out${n})
 test $lines -eq 1 || ret=1
 lines=$(grep -c "canonical name" nslookup.out${n})
 test $lines -eq 1 || ret=1
-lines=$(grep a-only.example.net nslookup.out${n} | grep -cv "canonical name")
+lines=$(grep a-only.example.net nslookup.out${n} | grep -cEv "(canonical name|^;;)")
 test $lines -eq 1 || ret=1
 grep "1.2.3.4" nslookup.out${n} >/dev/null || ret=1
 if [ $ret != 0 ]; then echo_i "failed"; fi
@@ -117,7 +117,7 @@ lines=$(grep -c "Server:" nslookup.out${n})
 test $lines -eq 1 || ret=1
 lines=$(grep -c "canonical name" nslookup.out${n})
 test $lines -eq 1 || ret=1
-lines=$(grep aaaa-only.example.net nslookup.out${n} | grep -cv "canonical name")
+lines=$(grep aaaa-only.example.net nslookup.out${n} | grep -cEv "(canonical name|^;;)")
 test $lines -eq 1 || ret=1
 grep "2001::ffff" nslookup.out${n} >/dev/null || ret=1
 if [ $ret != 0 ]; then echo_i "failed"; fi
@@ -133,7 +133,7 @@ lines=$(grep -c "Server:" nslookup.out${n})
 test $lines -eq 1 || ret=1
 lines=$(grep -c "canonical name" nslookup.out${n})
 test $lines -eq 1 || ret=1
-lines=$(grep dual.example.net nslookup.out${n} | grep -cv "canonical name")
+lines=$(grep dual.example.net nslookup.out${n} | grep -cEv "(canonical name|^;;)")
 test $lines -eq 2 || ret=1
 grep "1.2.3.4" nslookup.out${n} >/dev/null || ret=1
 grep "2001::ffff" nslookup.out${n} >/dev/null || ret=1