diff --git a/Audio/Utils/Semaphore.h b/Audio/Utils/Semaphore.h
index 39f98d16a..6aaece9f7 100644
--- a/Audio/Utils/Semaphore.h
+++ b/Audio/Utils/Semaphore.h
@@ -15,7 +15,7 @@
 
 -(id)init;
 -(void)signal;
--(void)timedWait:(int)seconds;
+-(void)timedWait:(int)microseconds;
 -(void)wait;
 -(void)waitIndefinitely;
 
diff --git a/Audio/Utils/Semaphore.m b/Audio/Utils/Semaphore.m
index 620ff50da..af13e9d7e 100644
--- a/Audio/Utils/Semaphore.m
+++ b/Audio/Utils/Semaphore.m
@@ -27,9 +27,9 @@
 	semaphore_signal_all(semaphore);
 }
 
--(void)timedWait:(int)seconds
+-(void)timedWait:(int)microseconds
 {
-	mach_timespec_t timeout = {seconds, 0};
+	mach_timespec_t timeout = {0, microseconds * 1000UL};
 	
 	semaphore_timedwait(semaphore, timeout);
 }