diff --git a/arch/arm/mach-s3c2410/mach-amlm5900.c b/arch/arm/mach-s3c2410/mach-amlm5900.c
index 5f51a80..4c958b7 100644
--- a/arch/arm/mach-s3c2410/mach-amlm5900.c
+++ b/arch/arm/mach-s3c2410/mach-amlm5900.c
@@ -179,6 +179,7 @@
 	.bpp		= 4,
 	.left_margin	= 1 << (4 + 3),
 	.right_margin	= 8 << 3,
+	.hsync_len	= 48,
 	.upper_margin	= 0,
 	.lower_margin	= 0,