diff --git a/sys/x86/x86/mca.c b/sys/x86/x86/mca.c
index bece5d490051..08e29d50ef41 100644
--- a/sys/x86/x86/mca.c
+++ b/sys/x86/x86/mca.c
@@ -73,7 +73,7 @@ enum scan_mode {
  */
 struct cmc_state {
 	int	max_threshold;
-	int	last_intr;
+	time_t	last_intr;
 };
 #endif