diff --git a/src/hardware/apic.c b/src/hardware/apic.c
index 118f523..a2f8c78 100644
--- a/src/hardware/apic.c
+++ b/src/hardware/apic.c
@@ -559,7 +559,7 @@ int apic_next(itick_t now)
     if (apic.timer_next <= now) {
         // Raise interrupt
         if(!(info & 1)) {// LVT_DISABLED set to 0
-            APIC_LOG("  timer period %ld cur=%ld next=%ld\n", apic_get_period(), now, apic.timer_next);
+            APIC_LOG("  timer period %llu cur=%llu next=%llu\n", apic_get_period(), now, apic.timer_next);
             apic_receive_bus_message(apic.lvt[LVT_INDEX_TIMER] & 0xFF, LVT_DELIVERY_FIXED, 0);
         }
         else apic_timer_enabled = 0;
@@ -600,4 +600,4 @@ void apic_init(struct pc_settings* pc)
 int apic_is_enabled(void)
 {
     return apic.enabled;
-}
\ No newline at end of file
+}