diff --git a/cores/arduino/CDC.cpp b/cores/arduino/CDC.cpp
index 7168408..f19b44c 100644
--- a/cores/arduino/CDC.cpp
+++ b/cores/arduino/CDC.cpp
@@ -236,9 +236,11 @@ Serial_::operator bool() {
 
 unsigned long Serial_::baud() {
 	// Disable interrupts while reading a multi-byte value
+	uint32_t baudrate;
 	ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
-		return _usbLineInfo.dwDTERate;
+		baudrate =  _usbLineInfo.dwDTERate;
 	}
+	return baudrate;
 }
 
 uint8_t Serial_::stopbits() {