diff --git a/lambda-test/lambda-test.c b/lambda-test/lambda-test.c
index ef3d450..9b2fa17 100644
--- a/lambda-test/lambda-test.c
+++ b/lambda-test/lambda-test.c
@@ -72,7 +72,7 @@
 	// enable timer 0 overflow interrupt
 	assertTrue(bit_is_set(TIMSK0, TOIE0));
 	// USART RX complete interrupt 0 enabled
-	assertTrue(bit_is_set(UCSR0B, RXCIE0));
+	// assertTrue(bit_is_set(UCSR0B, RXCIE0));
 
 	// sei(); // enable global interrupts
 	assertTrue(bit_is_set(SREG, SREG_I));
diff --git a/lambda/interrupts.c b/lambda/interrupts.c
index 0a902c0..5ae97e6 100644
--- a/lambda/interrupts.c
+++ b/lambda/interrupts.c
@@ -31,7 +31,7 @@
 	TIMSK0 |= (1 << TOIE0);
 
 	// enable USART RX complete interrupt 0
-	UCSR0B |= (1 << RXCIE0);
+	// UCSR0B |= (1 << RXCIE0);
 	// enable data register empty interrupt 0
 	// UCSR0B |= (1 << UDRIE0);