diff --git a/litex/soc/software/libbase/i2c.c b/litex/soc/software/libbase/i2c.c
index a36e986c5..b4ad80444 100644
--- a/litex/soc/software/libbase/i2c.c
+++ b/litex/soc/software/libbase/i2c.c
@@ -261,7 +261,8 @@ bool i2c_poll(unsigned char slave_addr)
     bool result;
 
     i2c_start();
-    result = i2c_transmit_byte(I2C_ADDR_RD(slave_addr));
+    result  = i2c_transmit_byte(I2C_ADDR_WR(slave_addr));
+    result |= i2c_transmit_byte(I2C_ADDR_RD(slave_addr));
     i2c_stop();
 
     return result;