diff --git a/target/i386/trace-events b/target/i386/trace-events
index 9f299e94a2..246158ae1f 100644
--- a/target/i386/trace-events
+++ b/target/i386/trace-events
@@ -8,11 +8,11 @@ kvm_x86_update_msi_routes(int num) "Updated %d MSI routes"
 
 # sev.c
 kvm_sev_init(void) ""
-kvm_memcrypt_register_region(void *addr, size_t len) "addr %p len 0x%zu"
-kvm_memcrypt_unregister_region(void *addr, size_t len) "addr %p len 0x%zu"
+kvm_memcrypt_register_region(void *addr, size_t len) "addr %p len 0x%zx"
+kvm_memcrypt_unregister_region(void *addr, size_t len) "addr %p len 0x%zx"
 kvm_sev_change_state(const char *old, const char *new) "%s -> %s"
 kvm_sev_launch_start(int policy, void *session, void *pdh) "policy 0x%x session %p pdh %p"
-kvm_sev_launch_update_data(void *addr, uint64_t len) "addr %p len 0x%" PRIu64
+kvm_sev_launch_update_data(void *addr, uint64_t len) "addr %p len 0x%" PRIx64
 kvm_sev_launch_measurement(const char *value) "data %s"
 kvm_sev_launch_finish(void) ""
 kvm_sev_launch_secret(uint64_t hpa, uint64_t hva, uint64_t secret, int len) "hpa 0x%" PRIx64 " hva 0x%" PRIx64 " data 0x%" PRIx64 " len %d"