diff --git a/man/systemd.timer.xml b/man/systemd.timer.xml
index fd03bda9cd8d0..cfa13015b035a 100644
--- a/man/systemd.timer.xml
+++ b/man/systemd.timer.xml
@@ -205,7 +205,7 @@
       </varlistentry>
 
       <varlistentry>
-        <term><varname>RandomSec=</varname></term>
+        <term><varname>RandomizedDelaySec=</varname></term>
 
         <listitem><para>Delay the timer by a randomly selected, evenly
         distributed amount of time between 0 and the specified time
@@ -222,16 +222,16 @@
         time range in order to minimize wakeups, the former does the
         opposite: it stretches timer events over a time range, to make
         it unlikely that they fire simultaneously. If
-        <varname>RandomSec=</varname> and
+        <varname>RandomizedDelaySec=</varname> and
         <varname>AccuracySec=</varname> are used in conjunction, first
-        the a randomized time is added, and the result is then
-        possibly shifted further to coalesce it with other timer
-        events possibly happening on the system. As mentioned above
+        the randomized delay is added, and then the result is
+        possibly further shifted to coalesce it with other timer
+        events happening on the system. As mentioned above
         <varname>AccuracySec=</varname> defaults to 1min and
-        <varname>RandomSec=</varname> to 0, thus encouraging
+        <varname>RandomizedDelaySec=</varname> to 0, thus encouraging
         coalescing of timer events. In order to optimally stretch
         timer events over a certain range of time, make sure to set
-        <varname>RandomSec=</varname> to a higher value, and
+        <varname>RandomizedDelaySec=</varname> to a higher value, and
         <varname>AccuracySec=1us</varname>.</para></listitem>
       </varlistentry>
 
diff --git a/src/core/dbus-timer.c b/src/core/dbus-timer.c
index 4bee82df07676..ec301df6d7410 100644
--- a/src/core/dbus-timer.c
+++ b/src/core/dbus-timer.c
@@ -180,7 +180,7 @@ const sd_bus_vtable bus_timer_vtable[] = {
         BUS_PROPERTY_DUAL_TIMESTAMP("LastTriggerUSec", offsetof(Timer, last_trigger), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
         SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Timer, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
         SD_BUS_PROPERTY("AccuracyUSec", "t", bus_property_get_usec, offsetof(Timer, accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
-        SD_BUS_PROPERTY("RandomUSec", "t", bus_property_get_usec, offsetof(Timer, random_usec), SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("RandomizedDelayUSec", "t", bus_property_get_usec, offsetof(Timer, random_usec), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("Persistent", "b", bus_property_get_bool, offsetof(Timer, persistent), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("WakeSystem", "b", bus_property_get_bool, offsetof(Timer, wake_system), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("RemainAfterElapse", "b", bus_property_get_bool, offsetof(Timer, remain_after_elapse), SD_BUS_VTABLE_PROPERTY_CONST),
@@ -284,7 +284,7 @@ static int bus_timer_set_transient_property(
 
                 return 1;
 
-        } else if (streq(name, "RandomUSec")) {
+        } else if (streq(name, "RandomizedDelayUSec")) {
                 usec_t u = 0;
 
                 r = sd_bus_message_read(message, "t", &u);
@@ -295,7 +295,7 @@ static int bus_timer_set_transient_property(
                         char time[FORMAT_TIMESPAN_MAX];
 
                         t->random_usec = u;
-                        unit_write_drop_in_private_format(UNIT(t), mode, name, "RandomSec=%s\n", format_timespan(time, sizeof(time), u, USEC_PER_MSEC));
+                        unit_write_drop_in_private_format(UNIT(t), mode, name, "RandomizedDelaySec=%s\n", format_timespan(time, sizeof(time), u, USEC_PER_MSEC));
                 }
 
                 return 1;
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index c64850802e5db..0408b9a82914b 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -347,7 +347,7 @@ Timer.Persistent,                config_parse_bool,                  0,
 Timer.WakeSystem,                config_parse_bool,                  0,                             offsetof(Timer, wake_system)
 Timer.RemainAfterElapse,         config_parse_bool,                  0,                             offsetof(Timer, remain_after_elapse)
 Timer.AccuracySec,               config_parse_sec,                   0,                             offsetof(Timer, accuracy_usec)
-Timer.RandomSec,                 config_parse_sec,                   0,                             offsetof(Timer, random_usec)
+Timer.RandomizedDelaySec,        config_parse_sec,                   0,                             offsetof(Timer, random_usec)
 Timer.Unit,                      config_parse_trigger_unit,          0,                             0
 m4_dnl
 Path.PathExists,                 config_parse_path_spec,             0,                             0
diff --git a/src/shared/bus-util.c b/src/shared/bus-util.c
index 38281045b8b2a..8775808da4057 100644
--- a/src/shared/bus-util.c
+++ b/src/shared/bus-util.c
@@ -1443,14 +1443,14 @@ int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignmen
 
                 return 0;
 
-        } else if (streq(field, "RandomSec")) {
+        } else if (streq(field, "RandomizedDelaySec")) {
                 usec_t t;
 
                 r = parse_sec(eq, &t);
                 if (r < 0)
-                        return log_error_errno(r, "Failed to parse RandomSec= parameter: %s", eq);
+                        return log_error_errno(r, "Failed to parse RandomizedDelaySec= parameter: %s", eq);
 
-                r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "RandomUSec");
+                r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "RandomizedDelayUSec");
                 if (r < 0)
                         return bus_log_create_error(r);