diff --git a/distrib/sets/lists/tests/mi b/distrib/sets/lists/tests/mi
index 6f16f3123355..9dd32a160cae 100644
--- a/distrib/sets/lists/tests/mi
+++ b/distrib/sets/lists/tests/mi
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.996 2020/12/19 16:00:17 rillig Exp $
+# $NetBSD: mi,v 1.997 2020/12/27 05:11:40 rillig Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -4818,6 +4818,8 @@
 ./usr/tests/usr.bin/make/unit-tests/archive-suffix.mk				tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/archive.exp					tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/archive.mk					tests-usr.bin-tests	compattestfile,atf
+./usr/tests/usr.bin/make/unit-tests/cmd-errors-jobs.exp				tests-usr.bin-tests	compattestfile,atf
+./usr/tests/usr.bin/make/unit-tests/cmd-errors-jobs.mk				tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/cmd-errors-lint.exp				tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/cmd-errors-lint.mk				tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/cmd-errors.exp				tests-usr.bin-tests	compattestfile,atf
diff --git a/usr.bin/make/unit-tests/Makefile b/usr.bin/make/unit-tests/Makefile
index 4ab913317b92..b5a3da91aa06 100644
--- a/usr.bin/make/unit-tests/Makefile
+++ b/usr.bin/make/unit-tests/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.256 2020/12/21 20:47:29 rillig Exp $
+# $NetBSD: Makefile,v 1.257 2020/12/27 05:11:40 rillig Exp $
 #
 # Unit tests for make(1)
 #
@@ -42,6 +42,7 @@
 TESTS+=		archive
 TESTS+=		archive-suffix
 TESTS+=		cmd-errors
+TESTS+=		cmd-errors-jobs
 TESTS+=		cmd-errors-lint
 TESTS+=		cmd-interrupt
 TESTS+=		cmdline
diff --git a/usr.bin/make/unit-tests/cmd-errors-jobs.exp b/usr.bin/make/unit-tests/cmd-errors-jobs.exp
new file mode 100644
index 000000000000..6d9c6bb7f890
--- /dev/null
+++ b/usr.bin/make/unit-tests/cmd-errors-jobs.exp
@@ -0,0 +1,9 @@
+: undefined  eol
+make: Unclosed variable "UNCLOSED"
+: unclosed-variable 
+make: Unclosed variable expression (expecting '}') for "UNCLOSED"
+: unclosed-modifier 
+make: Unknown modifier 'Z'
+: unknown-modifier  eol
+: end eol
+exit status 0
diff --git a/usr.bin/make/unit-tests/cmd-errors-jobs.mk b/usr.bin/make/unit-tests/cmd-errors-jobs.mk
new file mode 100644
index 000000000000..8462a2e3497e
--- /dev/null
+++ b/usr.bin/make/unit-tests/cmd-errors-jobs.mk
@@ -0,0 +1,32 @@
+# $NetBSD: cmd-errors-jobs.mk,v 1.1 2020/12/27 05:11:40 rillig Exp $
+#
+# Demonstrate how errors in variable expansions affect whether the commands
+# are actually executed in jobs mode.
+
+.MAKEFLAGS: -j1
+
+all: undefined unclosed-variable unclosed-modifier unknown-modifier end
+
+# Undefined variables are not an error.  They expand to empty strings.
+undefined:
+	: $@ ${UNDEFINED} eol
+
+# XXX: As of 2020-11-01, this command is executed even though it contains
+# parse errors.
+unclosed-variable:
+	: $@ ${UNCLOSED
+
+# XXX: As of 2020-11-01, this command is executed even though it contains
+# parse errors.
+unclosed-modifier:
+	: $@ ${UNCLOSED:
+
+# XXX: As of 2020-11-01, this command is executed even though it contains
+# parse errors.
+unknown-modifier:
+	: $@ ${UNKNOWN:Z} eol
+
+end:
+	: $@ eol
+
+# XXX: As of 2020-11-02, despite the parse errors, the exit status is 0.
diff --git a/usr.bin/make/unit-tests/cmd-errors.mk b/usr.bin/make/unit-tests/cmd-errors.mk
index 5ad4be311873..356fe1a3e4a2 100644
--- a/usr.bin/make/unit-tests/cmd-errors.mk
+++ b/usr.bin/make/unit-tests/cmd-errors.mk
@@ -1,7 +1,7 @@
-# $NetBSD: cmd-errors.mk,v 1.3 2020/11/09 23:36:34 rillig Exp $
+# $NetBSD: cmd-errors.mk,v 1.4 2020/12/27 05:11:40 rillig Exp $
 #
 # Demonstrate how errors in variable expansions affect whether the commands
-# are actually executed.
+# are actually executed in compat mode.
 
 all: undefined unclosed-variable unclosed-modifier unknown-modifier end