diff --git a/zion/interrupt/interrupt.cpp b/zion/interrupt/interrupt.cpp
index bc0b5f2..e5665b5 100644
--- a/zion/interrupt/interrupt.cpp
+++ b/zion/interrupt/interrupt.cpp
@@ -118,8 +118,8 @@ uint64_t cnt = 0;
 extern "C" void isr_timer();
 extern "C" void interrupt_timer(InterruptFrame*) {
   cnt++;
-  if (cnt % 1000 == 0) {
-    dbgln("timer: %u", cnt);
+  if (cnt % 20 == 0) {
+    dbgln("timer: %us", cnt * 50 / 1000);
   }
   outb(PIC1_COMMAND, PIC_EOI);
 }
diff --git a/zion/zion.cpp b/zion/zion.cpp
index d872cc9..503bc56 100644
--- a/zion/zion.cpp
+++ b/zion/zion.cpp
@@ -22,7 +22,8 @@ extern "C" void zion() {
 
   InitSyscall();
 
-  SetFrequency(/* hertz= */ 2000);
+  // Schedule every 50ms.
+  SetFrequency(/* hertz= */ 20);
   sched::InitScheduler();
   sched::EnableScheduler();