diff --git a/src/message.cpp b/src/message.cpp
index f84496d..8110fa3 100644
--- a/src/message.cpp
+++ b/src/message.cpp
@@ -29,7 +29,7 @@ Message::ParseSignalsStatus Message::parseSignals(const std::vector<uint8_t>& da
 	uint64_t v = 0;
 	for (const auto& signal : m_signals) {
 		if (signal.is_bigendian) {
-			uint32_t start_bit = 8 * ((uint32_t)std::floor(signal.start_bit / 8)) + (7 - (signal.start_bit % 8)); // Calculation taken from python CAN
+			uint32_t start_bit = 8 * ((uint32_t)floor(signal.start_bit / 8)) + (7 - (signal.start_bit % 8)); // Calculation taken from python CAN
 			v = data_big_endian << start_bit;
 			v = v >> (len - signal.size);
 		} else