diff --git a/Src/stm32f3xx_hal_i2c.c b/Src/stm32f3xx_hal_i2c.c
index 3ba3a4e..0b94f8a 100644
--- a/Src/stm32f3xx_hal_i2c.c
+++ b/Src/stm32f3xx_hal_i2c.c
@@ -2784,6 +2784,7 @@
     hi2c->ErrorCode   = HAL_I2C_ERROR_NONE;
 
     /* Prepare transfer parameters */
+    hi2c->XferSize    = 0U;
     hi2c->pBuffPtr    = pData;
     hi2c->XferCount   = Size;
     hi2c->XferOptions = I2C_NO_OPTION_FRAME;