diff --git a/ex00/src/BitcoinExchange.cpp b/ex00/src/BitcoinExchange.cpp
index 4d7f92d..c709380 100644
--- a/ex00/src/BitcoinExchange.cpp
+++ b/ex00/src/BitcoinExchange.cpp
@@ -170,12 +170,12 @@ static int get_input(const std::string& file_path, const std::map<unsigned int,
 		if (!check_line(line, reegex, " | ", INPUT, line_parsed))
 		{
 			std::map<unsigned int, float>::const_iterator it = database.upper_bound(line_parsed.first);
-			if (it->first < line_parsed.first)
+			if (it == database.begin())
 				std::cout << "Error: bad input => " << utodate(line_parsed.first) << std::endl;
 			else
 				std::cout << utodate(line_parsed.first)
 					<< " => " << line_parsed.second
-					<< " = " << line_parsed.second * it->second << std::endl;
+					<< " = " << line_parsed.second * (--it)->second << std::endl;
 		}
 	}