diff --git a/src/bus/i2c.c b/src/bus/i2c.c
index 988b2f3..931981d 100644
--- a/src/bus/i2c.c
+++ b/src/bus/i2c.c
@@ -2,7 +2,6 @@
 #include "bus/i2c.h"
 
 #include <avr/io.h>
-#include <assert.h>
 
 #define TW_START        0x08
 #define TW_REP_START    0x10
@@ -35,8 +34,6 @@ int I2C_Start(unsigned char addr, unsigned char mode)
 {
 	unsigned int status;
 
-	assert(mode == 0 || mode == 1);
-
 	// Send start condition
 
 	TWCR = (1 << TWEN)    // Enable TWI