diff --git a/src/libsystemd/libsystemd.sym b/src/libsystemd/libsystemd.sym
index 65b81db464..50ef8096db 100644
--- a/src/libsystemd/libsystemd.sym
+++ b/src/libsystemd/libsystemd.sym
@@ -934,10 +934,12 @@ global:
         sd_json_variant_sensitive;
         sd_json_variant_set_field;
         sd_json_variant_set_field_boolean;
+        sd_json_variant_set_field_id128;
         sd_json_variant_set_field_integer;
         sd_json_variant_set_field_string;
         sd_json_variant_set_field_strv;
         sd_json_variant_set_field_unsigned;
+        sd_json_variant_set_field_uuid;
         sd_json_variant_set_fieldb;
         sd_json_variant_sort;
         sd_json_variant_string;
diff --git a/src/libsystemd/sd-json/sd-json.c b/src/libsystemd/sd-json/sd-json.c
index 98ffe4db54..63e091085f 100644
--- a/src/libsystemd/sd-json/sd-json.c
+++ b/src/libsystemd/sd-json/sd-json.c
@@ -2075,6 +2075,14 @@ _public_ int sd_json_variant_set_field_string(sd_json_variant **v, const char *f
         return sd_json_variant_set_field(v, field, m);
 }
 
+_public_ int sd_json_variant_set_field_id128(sd_json_variant **v, const char *field, sd_id128_t value) {
+        return sd_json_variant_set_field_string(v, field, SD_ID128_TO_STRING(value));
+}
+
+_public_ int sd_json_variant_set_field_uuid(sd_json_variant **v, const char *field, sd_id128_t value) {
+        return sd_json_variant_set_field_string(v, field, SD_ID128_TO_UUID_STRING(value));
+}
+
 _public_ int sd_json_variant_set_field_integer(sd_json_variant **v, const char *field, int64_t i) {
         _cleanup_(sd_json_variant_unrefp) sd_json_variant *m = NULL;
         int r;
diff --git a/src/run/run.c b/src/run/run.c
index 62140062ab..2db60e6bb8 100644
--- a/src/run/run.c
+++ b/src/run/run.c
@@ -1716,7 +1716,7 @@ static int print_unit_invocation(const char *unit, sd_id128_t invocation_id) {
                 return r;
 
         if (!sd_id128_is_null(invocation_id)) {
-                r = sd_json_variant_set_field_string(&v, "invocation_id", SD_ID128_TO_STRING(invocation_id));
+                r = sd_json_variant_set_field_id128(&v, "invocation_id", invocation_id);
                 if (r < 0)
                         return r;
         }
@@ -1845,7 +1845,7 @@ static int start_transient_service(sd_bus *bus) {
         }
 
         if (!arg_quiet) {
-                sd_id128_t invocation_id = SD_ID128_NULL;
+                sd_id128_t invocation_id;
 
                 r = acquire_invocation_id(bus, service, &invocation_id);
                 if (r < 0)
@@ -2014,7 +2014,7 @@ static int start_transient_scope(sd_bus *bus) {
         _cleanup_strv_free_ char **env = NULL, **user_env = NULL;
         _cleanup_free_ char *scope = NULL;
         const char *object = NULL;
-        sd_id128_t invocation_id = SD_ID128_NULL;
+        sd_id128_t invocation_id;
         bool allow_pidfd = true;
         int r;
 
diff --git a/src/systemd/sd-json.h b/src/systemd/sd-json.h
index fb796f0fa8..4b5cbd4e5d 100644
--- a/src/systemd/sd-json.h
+++ b/src/systemd/sd-json.h
@@ -161,6 +161,8 @@ int sd_json_variant_set_fieldb(sd_json_variant **v, const char *field, ...);
 #define sd_json_variant_set_fieldbo(v, field, ...)                      \
         sd_json_variant_set_fieldb((v), (field), SD_JSON_BUILD_OBJECT(__VA_ARGS__))
 int sd_json_variant_set_field_string(sd_json_variant **v, const char *field, const char *value);
+int sd_json_variant_set_field_id128(sd_json_variant **v, const char *field, sd_id128_t value);
+int sd_json_variant_set_field_uuid(sd_json_variant **v, const char *field, sd_id128_t value);
 int sd_json_variant_set_field_integer(sd_json_variant **v, const char *field, int64_t value);
 int sd_json_variant_set_field_unsigned(sd_json_variant **v, const char *field, uint64_t value);
 int sd_json_variant_set_field_boolean(sd_json_variant **v, const char *field, int b);