diff --git a/test/test-execute/exec-temporaryfilesystem-options.service b/test/test-execute/exec-temporaryfilesystem-options.service
index 1d5d76c81c..7b4f48c66a 100644
--- a/test/test-execute/exec-temporaryfilesystem-options.service
+++ b/test/test-execute/exec-temporaryfilesystem-options.service
@@ -4,8 +4,14 @@ Description=Test for TemporaryFileSystem with mount options
 [Service]
 Type=oneshot
 
-# Check /proc/self/mountinfo
-ExecStart=/bin/sh -c 'test $$(awk \'$$5 == "/var" { print $$6 }\' /proc/self/mountinfo) = "ro,nodev,relatime"'
-ExecStart=/bin/sh -c 'test $$(awk \'$$5 == "/var" { print $$11 }\' /proc/self/mountinfo) = "ro,mode=700"'
-
+# The mount options default to "mode=0755,nodev,strictatime".
+# Let's override some of them, and test the behaviour of "ro".
 TemporaryFileSystem=/var:ro,mode=0700,nostrictatime
+
+# Check /proc/self/mountinfo
+ExecStart=/bin/sh -x -c 'test "$$(awk \'$$5 == "/var" && $$11 !~ /(^|,)ro(,|$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
+ExecStart=/bin/sh -x -c 'test "$$(awk \'$$5 == "/var" && $$11 !~ /(^|,)mode=700(,|$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
+
+ExecStart=/bin/sh -x -c 'test "$$(awk \'$$5 == "/var" && $$6 !~ /(^|,)ro(,|$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
+ExecStart=/bin/sh -x -c 'test "$$(awk \'$$5 == "/var" && $$6 !~ /(^|,)nodev(,|$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
+ExecStart=/bin/sh -x -c 'test "$$(awk \'$$5 == "/var" && $$6 ~ /(^|,)strictatime(,|$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'