diff --git a/include/asm-arm/plat-s3c24xx/mci.h b/include/asm-arm/plat-s3c24xx/mci.h
index 4f4ccd1..2d0852a 100644
--- a/include/asm-arm/plat-s3c24xx/mci.h
+++ b/include/asm-arm/plat-s3c24xx/mci.h
@@ -3,6 +3,7 @@
 
 struct s3c24xx_mci_pdata {
 	unsigned int	wprotect_invert : 1;
+	unsigned int	detect_invert : 1;   /* set => detect active high. */
 
 	unsigned int	gpio_detect;
 	unsigned int	gpio_wprotect;