diff --git a/src/i830_i2c.c b/src/i830_i2c.c
index 450f9de0..7fac63cd 100644
--- a/src/i830_i2c.c
+++ b/src/i830_i2c.c
@@ -336,6 +336,7 @@ i830I2CPutBits(I2CBusPtr b, int clock, int data)
 	clock_bits = GPIO_CLOCK_DIR_OUT|GPIO_CLOCK_DIR_MASK|GPIO_CLOCK_VAL_MASK;
     
     OUTREG(b->DriverPrivate.uval, reserved | data_bits | clock_bits);
+    (void)INREG(b->DriverPrivate.uval);
 }
 
 #endif