1 files changed, 3 insertions, 4 deletions

diff --git a/src/restclient/anastasis_api_truth_store.c b/src/restclient/anastasis_api_truth_store.c
index 185e06b..74b9238 100644
--- a/src/restclient/anastasis_api_truth_store.c
+++ b/src/restclient/anastasis_api_truth_store.c
@@ -303,10 +303,9 @@ ANASTASIS_truth_store (
       GNUNET_JSON_pack_data_varsize ("encrypted_truth",
                                      encrypted_truth,
                                      encrypted_truth_size),
-      GNUNET_JSON_pack_string ("truth_mime",
-                               (NULL != truth_mime)
-                               ? truth_mime
-                               : ""),
+      GNUNET_JSON_pack_allow_null (
+        GNUNET_JSON_pack_string ("truth_mime",
+                                 truth_mime)),
       GNUNET_JSON_pack_uint64 ("storage_duration_years",
                                payment_years_requested));
     json_str = json_dumps (truth_data,