diff --git a/arch/arm/src/tiva/tiva_serial.c b/arch/arm/src/tiva/tiva_serial.c
index e131fbd5d6b..fb80e9f3263 100644
--- a/arch/arm/src/tiva/tiva_serial.c
+++ b/arch/arm/src/tiva/tiva_serial.c
@@ -305,13 +305,13 @@
 
 struct up_dev_s
 {
-  uint32_t uartbase; /* Base address of UART registers */
-  uint32_t baud;     /* Configured baud */
-  uint32_t im;       /* Saved IM value */
-  uint8_t  irq;      /* IRQ associated with this UART */
-  uint8_t  parity;   /* 0=none, 1=odd, 2=even */
-  uint8_t  bits;     /* Number of bits (7 or 8) */
-  bool    stopbits2; /* true: Configure with 2 stop bits instead of 1 */
+  uint32_t uartbase;  /* Base address of UART registers */
+  uint32_t baud;      /* Configured baud */
+  uint32_t im;        /* Saved IM value */
+  uint8_t  irq;       /* IRQ associated with this UART */
+  uint8_t  parity;    /* 0=none, 1=odd, 2=even */
+  uint8_t  bits;      /* Number of bits (7 or 8) */
+  bool     stopbits2; /* true: Configure with 2 stop bits instead of 1 */
 };
 
 /****************************************************************************