diff --git a/arch/arm/src/bcm2708/bcm_miniuart.c b/arch/arm/src/bcm2708/bcm_miniuart.c
index a035bd1213..0f5075b334 100644
--- a/arch/arm/src/bcm2708/bcm_miniuart.c
+++ b/arch/arm/src/bcm2708/bcm_miniuart.c
@@ -450,7 +450,7 @@ static int bcm_ioctl(struct file *filep, int cmd, unsigned long arg)
         /* Perform some sanity checks before accepting any changes */
 
         if (((termiosp->c_cflag & CSIZE) != CS8)
-#  ifdef CONFIG_SERIAL_IFLOWCONTROL
+#  ifdef CONFIG_SERIAL_OFLOWCONTROL
             || ((termiosp->c_cflag & CCTS_OFLOW) && (priv->cts_gpio == 0))
 #  endif
 #  ifdef CONFIG_SERIAL_IFLOWCONTROL
diff --git a/arch/arm/src/efm32/efm32_serial.c b/arch/arm/src/efm32/efm32_serial.c
index 46df453799..9034d65de7 100644
--- a/arch/arm/src/efm32/efm32_serial.c
+++ b/arch/arm/src/efm32/efm32_serial.c
@@ -866,7 +866,7 @@ static int efm32_ioctl(struct file *filep, int cmd, unsigned long arg)
         /* Perform some sanity checks before accepting any changes */
 
         if (((termiosp->c_cflag & CSIZE) != CS8)
-#ifdef CONFIG_SERIAL_IFLOWCONTROL
+#ifdef CONFIG_SERIAL_OFLOWCONTROL
             || ((termiosp->c_cflag & CCTS_OFLOW) && (priv->cts_gpio == 0))
 #endif
 #ifdef CONFIG_SERIAL_IFLOWCONTROL
diff --git a/arch/arm/src/kinetis/kinetis_lpserial.c b/arch/arm/src/kinetis/kinetis_lpserial.c
index 64091d6e73..037651217f 100644
--- a/arch/arm/src/kinetis/kinetis_lpserial.c
+++ b/arch/arm/src/kinetis/kinetis_lpserial.c
@@ -915,7 +915,7 @@ static int kinetis_ioctl(struct file *filep, int cmd, unsigned long arg)
         /* Perform some sanity checks before accepting any changes */
 
         if (((termiosp->c_cflag & CSIZE) != CS8)
-#  ifdef CONFIG_SERIAL_IFLOWCONTROL
+#  ifdef CONFIG_SERIAL_OFLOWCONTROL
             || ((termiosp->c_cflag & CCTS_OFLOW) && (priv->cts_gpio == 0))
 #  endif
 #  ifdef CONFIG_SERIAL_IFLOWCONTROL
diff --git a/arch/arm/src/kinetis/kinetis_serial.c b/arch/arm/src/kinetis/kinetis_serial.c
index 42bf6d4f08..07998f60c5 100644
--- a/arch/arm/src/kinetis/kinetis_serial.c
+++ b/arch/arm/src/kinetis/kinetis_serial.c
@@ -1382,7 +1382,7 @@ static int up_ioctl(struct file *filep, int cmd, unsigned long arg)
         /* Perform some sanity checks before accepting any changes */
 
         if (((termiosp->c_cflag & CSIZE) != CS8)
-#  ifdef CONFIG_SERIAL_IFLOWCONTROL
+#  ifdef CONFIG_SERIAL_OFLOWCONTROL
             || ((termiosp->c_cflag & CCTS_OFLOW) && (priv->cts_gpio == 0))
 #  endif
 #  ifdef CONFIG_SERIAL_IFLOWCONTROL