diff --git a/uart_init.c b/uart_init.c
index 3987a0e..48829dc 100644
--- a/uart_init.c
+++ b/uart_init.c
@@ -5,7 +5,7 @@
 
 void uart_init(long fosc, long baud)
 {
-	TMOD = 0x20;       // Timer 1 in Mode 2
+	TMOD |= 0x20;       // Timer 1 in Mode 2
 	TH1 = 0xFD;        // 9600 baud rate
 	TL1 = 0xFD;        // Initial value (not necessary)
 	TR1 = 1;           // Start Timer 1