diff --git a/include/asm-arm/arch-s3c2410/system.h b/include/asm-arm/arch-s3c2410/system.h
index 718246d85952..4f72a853a5cf 100644
--- a/include/asm-arm/arch-s3c2410/system.h
+++ b/include/asm-arm/arch-s3c2410/system.h
@@ -71,7 +71,7 @@ arch_reset(char mode)
 
 	/* set the watchdog to go and reset... */
 	__raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN |
-		     S3C2410_WTCON_PRESCALE(0x80), S3C2410_WTCON);
+		     S3C2410_WTCON_PRESCALE(0x20), S3C2410_WTCON);
 
 	/* wait for reset to assert... */
 	mdelay(5000);