diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 42c6d69b82..c166fd20fa 100644
--- a/hw/i2c/aspeed_i2c.c
+++ b/hw/i2c/aspeed_i2c.c
@@ -1131,7 +1131,9 @@ static int aspeed_i2c_bus_slave_event(I2CSlave *slave, enum i2c_event event)
     AspeedI2CBus *bus = ASPEED_I2C_BUS(qbus->parent);
     uint32_t reg_intr_sts = aspeed_i2c_bus_intr_sts_offset(bus);
     uint32_t reg_byte_buf = aspeed_i2c_bus_byte_buf_offset(bus);
-    uint32_t value;
+    uint32_t reg_dev_addr = aspeed_i2c_bus_dev_addr_offset(bus);
+    uint32_t dev_addr = SHARED_ARRAY_FIELD_EX32(bus->regs, reg_dev_addr,
+                                                SLAVE_DEV_ADDR1);
 
     if (aspeed_i2c_is_new_mode(bus->controller)) {
         return aspeed_i2c_bus_new_slave_event(bus, event);
@@ -1139,8 +1141,8 @@ static int aspeed_i2c_bus_slave_event(I2CSlave *slave, enum i2c_event event)
 
     switch (event) {
     case I2C_START_SEND_ASYNC:
-        value = SHARED_ARRAY_FIELD_EX32(bus->regs, reg_byte_buf, TX_BUF);
-        SHARED_ARRAY_FIELD_DP32(bus->regs, reg_byte_buf, RX_BUF, value << 1);
+        /* Bit[0] == 0 indicates "send". */
+        SHARED_ARRAY_FIELD_DP32(bus->regs, reg_byte_buf, RX_BUF, dev_addr << 1);
 
         ARRAY_FIELD_DP32(bus->regs, I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH, 1);
         SHARED_ARRAY_FIELD_DP32(bus->regs, reg_intr_sts, RX_DONE, 1);
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 300a89b343..adc904d6c1 100644
--- a/include/hw/i2c/aspeed_i2c.h
+++ b/include/hw/i2c/aspeed_i2c.h
@@ -130,6 +130,7 @@ REG32(I2CD_CMD, 0x14) /* I2CD Command/Status */
     SHARED_FIELD(M_TX_CMD, 1, 1)
     SHARED_FIELD(M_START_CMD, 0, 1)
 REG32(I2CD_DEV_ADDR, 0x18) /* Slave Device Address */
+    SHARED_FIELD(SLAVE_DEV_ADDR1, 0, 7)
 REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */
     SHARED_FIELD(RX_COUNT, 24, 5)
     SHARED_FIELD(RX_SIZE, 16, 5)