diff --git a/src/cryptonote_core/cryptonote_format_utils.h b/src/cryptonote_core/cryptonote_format_utils.h
index 138fb5224..81d804298 100644
--- a/src/cryptonote_core/cryptonote_format_utils.h
+++ b/src/cryptonote_core/cryptonote_format_utils.h
@@ -85,7 +85,6 @@ namespace cryptonote
   uint64_t get_outs_money_amount(const transaction& tx);
   bool check_inputs_types_supported(const transaction& tx);
   bool check_outs_valid(const transaction& tx);
-  blobdata get_block_hashing_blob(const block& b);
   bool parse_amount(uint64_t& amount, const std::string& str_amount);
 
   bool check_money_overflow(const transaction& tx);