diff --git a/arch/arm/mach-lpc32xx/include/mach/gpio-lpc32xx.h b/arch/arm/mach-lpc32xx/include/mach/gpio-lpc32xx.h
index 1816e22a347953d1264b1bcbb4465d4c2cd10dd7..a544e962a818a0ebd3da51b885f578de916b8552 100644
--- a/arch/arm/mach-lpc32xx/include/mach/gpio-lpc32xx.h
+++ b/arch/arm/mach-lpc32xx/include/mach/gpio-lpc32xx.h
@@ -30,7 +30,7 @@
 #define LPC32XX_GPIO_P1_MAX 24
 #define LPC32XX_GPIO_P2_MAX 13
 #define LPC32XX_GPIO_P3_MAX 6
-#define LPC32XX_GPI_P3_MAX 28
+#define LPC32XX_GPI_P3_MAX 29
 #define LPC32XX_GPO_P3_MAX 24
 
 #define LPC32XX_GPIO_P0_GRP 0