diff --git a/module02/ex00/main.c b/module02/ex00/main.c
index 41948a5..1f36848 100644
--- a/module02/ex00/main.c
+++ b/module02/ex00/main.c
@@ -91,8 +91,8 @@
 // 20.4 Frame Formats : 8N1 : 8 data bits, no parity, 1 stop bit
 // 20.5 USART Initialization : (1) setting baud rate, (2) setting frame format, (3) enabling the Transmitter or the Receiver
 void uart_init() {
-	UBRR0H = BAUD_PRESCALER >> 8;												// 20.11.5 : UBRRnL and UBRRnH – USART Baud Rate Registers
-	UBRR0L = BAUD_PRESCALER;
+	UBRR0H = (unsigned char) (BAUD_PRESCALER >> 8);								// 20.11.5 : UBRRnL and UBRRnH – USART Baud Rate Registers
+	UBRR0L = (unsigned char) BAUD_PRESCALER;
 
 	UCSR0C = ASYNCHRONOUS | PARITY_DISABLED | STOP_ONE_BIT | DATA_EIGHT_BIT;	// 20.11.4 : set Frame Format
 	
@@ -101,7 +101,7 @@ void uart_init() {
 
 void uart_tx(char c) {
 	while (TEST(UCSR0A, UDRE0) == 0);											// 20.11.2 : do nothing until UDR emission buffer is empty, if UDREn flag is 1, UCSRnA register is empty
-	UDR0 = c;																	// 20.11.1 : Put data into buffer, UDRn – USART I/O Data Register (read and write)
+	UDR0 = (unsigned char) c;													// 20.11.1 : Put data into buffer, UDRn – USART I/O Data Register (read and write)
 }
 
 int main() {