diff --git a/bin/tests/system/runtime/clean.sh b/bin/tests/system/runtime/clean.sh
index 961857a4c0..4a756b3d38 100644
--- a/bin/tests/system/runtime/clean.sh
+++ b/bin/tests/system/runtime/clean.sh
@@ -19,5 +19,3 @@ rm -f rndc.out*
 rm -rf ns2/nope
 rm -rf ns2/tmp.*
 rm -f ns*/managed-keys.bind*
-rm -rf "ns2/`cat ctrl-char-dir-name`"
-rm -rf "ns2/$;"
diff --git a/bin/tests/system/runtime/ctrl-char-dir-name b/bin/tests/system/runtime/ctrl-chars
similarity index 100%
rename from bin/tests/system/runtime/ctrl-char-dir-name
rename to bin/tests/system/runtime/ctrl-chars
diff --git a/bin/tests/system/runtime/setup.sh b/bin/tests/system/runtime/setup.sh
index 55bfd33655..417ba70829 100644
--- a/bin/tests/system/runtime/setup.sh
+++ b/bin/tests/system/runtime/setup.sh
@@ -22,6 +22,7 @@ copy_setports ns2/named-alt3.conf.in ns2/named-alt3.conf
 copy_setports ns2/named-alt4.conf.in ns2/named-alt4.conf
 copy_setports ns2/named-alt5.conf.in ns2/named-alt5.conf
 copy_setports ns2/named-alt6.conf.in ns2/named-alt6.conf
+copy_setports ns2/named-alt7.conf.in ns2/named-alt7.conf
 
 mkdir ns2/nope
 
diff --git a/bin/tests/system/runtime/tests.sh b/bin/tests/system/runtime/tests.sh
index 9fb45bf85f..f65ad20b85 100644
--- a/bin/tests/system/runtime/tests.sh
+++ b/bin/tests/system/runtime/tests.sh
@@ -165,10 +165,8 @@ status=$((status+ret))
 n=$((n+1))
 echo_i "checking that named logs control characters in octal notation ($n)"
 ret=0
-SPEC_DIR=$(cat ctrl-char-dir-name)
-mkdir "ns2/${SPEC_DIR}"
-copy_setports ns2/named-alt7.conf.in "ns2/${SPEC_DIR}/named.conf"
-(cd ns2 && $NAMED -c "${SPEC_DIR}/named.conf" -d 99 -g > named$n.run 2>&1 &)
+INSTANCE_NAME="runtime-ns2-extra-7-$(cat ctrl-chars)"
+(cd ns2 && $NAMED -c named-alt7.conf -D "${INSTANCE_NAME}" -d 99 -g > named$n.run 2>&1 &)
 wait_for_named "running$" ns2/named$n.run || ret=1
 grep 'running as.*\\177\\033' ns2/named$n.run > /dev/null || ret=1
 kill_named ns2/named.pid || ret=1
@@ -178,10 +176,8 @@ status=$((status+ret))
 n=$((n+1))
 echo_i "checking that named escapes special characters in the logs ($n)"
 ret=0
-SPEC_DIR="$;"
-mkdir "ns2/${SPEC_DIR}"
-copy_setports ns2/named-alt7.conf.in "ns2/${SPEC_DIR}/named.conf"
-(cd ns2 && $NAMED -c "${SPEC_DIR}/named.conf" -d 99 -g > named$n.run 2>&1 &)
+INSTANCE_NAME="runtime-ns2-extra-8-$;"
+(cd ns2 && $NAMED -c named-alt7.conf -D "${INSTANCE_NAME}" -d 99 -g > named$n.run 2>&1 &)
 wait_for_named "running$" ns2/named$n.run || ret=1
 grep 'running as.*\\$\\;' ns2/named$n.run > /dev/null || ret=1
 kill_named ns2/named.pid || ret=1
@@ -192,7 +188,6 @@ n=$((n+1))
 echo_i "checking that named logs an ellipsis when the command line is larger than 8k bytes ($n)"
 ret=0
 LONG_CMD_LINE=$(cat long-cmd-line)
-copy_setports ns2/named-alt7.conf.in "ns2/named-alt7.conf"
 # shellcheck disable=SC2086
 (cd ns2 && $NAMED $LONG_CMD_LINE -c "named-alt7.conf" -g > named$n.run 2>&1 &)
 wait_for_named "running$" ns2/named$n.run || ret=1
diff --git a/util/copyrights b/util/copyrights
index 8460b00ed4..3e87c024f3 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -1008,7 +1008,7 @@
 ./bin/tests/system/runsequential.sh		SH	2018,2019
 ./bin/tests/system/runtime/README		TXT.BRIEF	2014,2016,2018,2019
 ./bin/tests/system/runtime/clean.sh		SH	2014,2015,2016,2017,2018,2019
-./bin/tests/system/runtime/ctrl-char-dir-name	X	2019
+./bin/tests/system/runtime/ctrl-chars		X	2019
 ./bin/tests/system/runtime/long-cmd-line	X	2019
 ./bin/tests/system/runtime/setup.sh		SH	2015,2016,2017,2018,2019
 ./bin/tests/system/runtime/tests.sh		SH	2014,2015,2016,2017,2018,2019