diff --git a/src/dbus-common.c b/src/dbus-common.c
index 50daedcf5..a07236998 100644
--- a/src/dbus-common.c
+++ b/src/dbus-common.c
@@ -533,6 +533,22 @@ int bus_property_append_bool(DBusMessageIter *i, const char *property, void *dat
         return 0;
 }
 
+int bus_property_append_tristate_false(DBusMessageIter *i, const char *property, void *data) {
+        int *b = data;
+        dbus_bool_t db;
+
+        assert(i);
+        assert(property);
+        assert(b);
+
+        db = *b > 0;
+
+        if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &db))
+                return -ENOMEM;
+
+        return 0;
+}
+
 int bus_property_append_uint64(DBusMessageIter *i, const char *property, void *data) {
         assert(i);
         assert(property);
diff --git a/src/dbus-common.h b/src/dbus-common.h
index c3499b999..15811a7e5 100644
--- a/src/dbus-common.h
+++ b/src/dbus-common.h
@@ -128,6 +128,7 @@ DBusHandlerResult bus_default_message_handler(
 int bus_property_append_string(DBusMessageIter *i, const char *property, void *data);
 int bus_property_append_strv(DBusMessageIter *i, const char *property, void *data);
 int bus_property_append_bool(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_tristate_false(DBusMessageIter *i, const char *property, void *data);
 int bus_property_append_int32(DBusMessageIter *i, const char *property, void *data);
 int bus_property_append_uint32(DBusMessageIter *i, const char *property, void *data);
 int bus_property_append_uint64(DBusMessageIter *i, const char *property, void *data);
diff --git a/src/dbus-execute.c b/src/dbus-execute.c
index db7cc2f1d..c5abcf674 100644
--- a/src/dbus-execute.c
+++ b/src/dbus-execute.c
@@ -416,6 +416,6 @@ const BusProperty bus_exec_context_properties[] = {
         { "KillSignal",               bus_property_append_int,               "i", offsetof(ExecContext, kill_signal)                  },
         { "UtmpIdentifier",           bus_property_append_string,            "s", offsetof(ExecContext, utmp_id),                true },
         { "ControlGroupModify",       bus_property_append_bool,              "b", offsetof(ExecContext, control_group_modify)         },
-/* FIXME{ "ControlGroupPersistent",   bus_property_append_bool,              "b", offsetof(ExecContext, control_group_persistent)     },*/
+        { "ControlGroupPersistent",   bus_property_append_tristate_false,    "b", offsetof(ExecContext, control_group_persistent)     },
         { NULL, }
 };
diff --git a/src/dbus-execute.h b/src/dbus-execute.h
index 4626acbd3..0aea99e33 100644
--- a/src/dbus-execute.h
+++ b/src/dbus-execute.h
@@ -94,6 +94,7 @@
         "  <property name=\"KillSignal\" type=\"i\" access=\"read\"/>\n" \
         "  <property name=\"UtmpIdentifier\" type=\"s\" access=\"read\"/>\n" \
         "  <property name=\"ControlGroupModify\" type=\"b\" access=\"read\"/>\n" \
+        "  <property name=\"ControlGroupPersistent\" type=\"b\" access=\"read\"/>\n" \
         "  <property name=\"PrivateNetwork\" type=\"b\" access=\"read\"/>\n"
 
 #define BUS_EXEC_COMMAND_INTERFACE(name)                             \