diff --git a/c_os/devices/PIT.cc b/c_os/devices/PIT.cc
index bf200a5..5568c6c 100755
--- a/c_os/devices/PIT.cc
+++ b/c_os/devices/PIT.cc
@@ -85,7 +85,7 @@ void PIT::trigger () {
 
     // Preemption
     if (scheduler.isInitialized()) {
-
+        scheduler.preempt();
     }