diff --git a/common/clock.c b/common/clock.c
index ad708ad..8eeb917 100644
--- a/common/clock.c
+++ b/common/clock.c
@@ -104,7 +104,7 @@
 {
 	uint64_t start = get_time_ns();
 
-	while(!is_timeout(start, usecs * 1000));
+	while(!is_timeout(start, usecs * USECOND));
 }
 EXPORT_SYMBOL(udelay);
 
@@ -112,7 +112,7 @@
 {
 	uint64_t start = get_time_ns();
 
-	while(!is_timeout(start, msecs * 1000000));
+	while(!is_timeout(start, msecs * MSECOND));
 }
 EXPORT_SYMBOL(mdelay);