diff --git a/src/crypto/crypto-sugar.h b/src/crypto/crypto-sugar.h
index 7fb39548..4aa576fd 100644
--- a/src/crypto/crypto-sugar.h
+++ b/src/crypto/crypto-sugar.h
@@ -141,8 +141,7 @@ namespace crypto
       crypto::secret_key  m_sk;
     };
 
-    scalar_t()
-    {}
+    scalar_t() = default;
 
     // won't check scalar range validity (< L)
     scalar_t(uint64_t a0, uint64_t a1, uint64_t a2, uint64_t a3)
diff --git a/src/currency_core/offers_service_basics.h b/src/currency_core/offers_service_basics.h
index 809bf88b..1dffe367 100644
--- a/src/currency_core/offers_service_basics.h
+++ b/src/currency_core/offers_service_basics.h
@@ -19,9 +19,9 @@ namespace bc_services
   {
 
     //fields filled in UI
-    uint8_t offer_type;             // OFFER_TYPE_PRIMARY_TO_TARGET(SELL ORDER) - 0, OFFER_TYPE_TARGET_TO_PRIMARY(BUY ORDER) - 1 etc.
-    uint64_t amount_primary;        // amount of the currency
-    uint64_t amount_target;         // amount of other currency or goods
+    uint8_t offer_type = 0;         // OFFER_TYPE_PRIMARY_TO_TARGET(SELL ORDER) - 0, OFFER_TYPE_TARGET_TO_PRIMARY(BUY ORDER) - 1 etc.
+    uint64_t amount_primary = 0;    // amount of the currency
+    uint64_t amount_target = 0;     // amount of other currency or goods
     std::string bonus;              //
     std::string target;             // [] currency / goods
     std::string primary;            // currency for goods
@@ -33,7 +33,7 @@ namespace bc_services
     std::string deal_option;        // []full amount, by parts
     std::string category;           // []
     std::string preview_url;        // []
-    uint8_t expiration_time;        // n-days
+    uint8_t expiration_time = 0;    // n-days
     //-----------------
 
     BEGIN_KV_SERIALIZE_MAP()