diff --git a/arch/arm/src/stm32/stm32_i2c.c b/arch/arm/src/stm32/stm32_i2c.c
index 11e6767aec6..1865cd8149f 100644
--- a/arch/arm/src/stm32/stm32_i2c.c
+++ b/arch/arm/src/stm32/stm32_i2c.c
@@ -1069,7 +1069,7 @@ static int stm32_i2c_isr(struct stm32_i2c_priv_s *priv)
             {
               stm32_i2c_modifyreg(priv, STM32_I2C_CR1_OFFSET, I2C_CR1_ACK, 0);  
             }
-          priv->dnct--;
+          priv->dcnt--;
         }
     }