diff --git a/modules/net/dap_chain_node_cli_cmd_tx.c b/modules/net/dap_chain_node_cli_cmd_tx.c
index 4c2c177bc82a0cf696949b0e0b0513159374314e..a6fb980dd4526ea973d337b086db897a22c7cd25 100644
--- a/modules/net/dap_chain_node_cli_cmd_tx.c
+++ b/modules/net/dap_chain_node_cli_cmd_tx.c
@@ -700,7 +700,7 @@ static int s_json_tx_history_pack(json_object** a_json_obj_datum, dap_chain_datu
     dap_hash_fast_t l_ttx_hash = {0};
     dap_hash_fast(l_tx, a_datum->header.data_size, &l_ttx_hash);
 
-    char *service_name = NULL;
+    const char *service_name = NULL;
     dap_chain_tx_tag_action_type_t l_action = DAP_CHAIN_TX_TAG_ACTION_UNKNOWN;
     //bool srv_found = a_datum_iter->uid.uint64 ? true : false;
     l_action = a_datum_iter->action;
diff --git a/modules/type/blocks/dap_chain_cs_blocks.c b/modules/type/blocks/dap_chain_cs_blocks.c
index 295b2e4b287ef4e73df3a1da72309ec2780da6e0..d1abf407c909861ff388c1aa499dac5557346063 100644
--- a/modules/type/blocks/dap_chain_cs_blocks.c
+++ b/modules/type/blocks/dap_chain_cs_blocks.c
@@ -1483,7 +1483,7 @@ static int s_add_atom_datums(dap_chain_cs_blocks_t *a_blocks, dap_chain_block_ca
             break;
         }
         dap_hash_fast_t *l_datum_hash = a_block_cache->datum_hash + i;
-        dap_ledger_datum_iter_data_t l_datum_index_data = { "0", 0 , 0 };
+        dap_ledger_datum_iter_data_t l_datum_index_data = { {"0"}, 0 , 0 };
 
         int l_res = dap_chain_datum_add(a_blocks->chain, l_datum, l_datum_size, l_datum_hash, &l_datum_index_data);
         l_ret++;
@@ -2232,7 +2232,7 @@ static void s_datum_iter_fill(dap_chain_datum_iter_t *a_datum_iter, dap_chain_bl
         a_datum_iter->cur_size = 0;
         a_datum_iter->ret_code = 0;
         a_datum_iter->token_ticker = NULL;
-        a_datum_iter->action = NULL;
+        a_datum_iter->action = 0;
         a_datum_iter->uid.uint64 = 0;
     }
     debug_if(a_datum_index && !a_datum_index->block_cache->datum, L_ERROR, "Chains was deleted with errors");