diff --git a/sys/dev/hwpmc/hwpmc_mod.c b/sys/dev/hwpmc/hwpmc_mod.c
index 9e82a34a265a..2f2f05a76a3b 100644
--- a/sys/dev/hwpmc/hwpmc_mod.c
+++ b/sys/dev/hwpmc/hwpmc_mod.c
@@ -3022,7 +3022,7 @@ pmc_syscall_handler(struct thread *td, void *syscall_args)
 		}
 
 		nevent = 0;
-		for (ev = PMC_EV_SOFT_FIRST; ev <= PMC_EV_SOFT_LAST; ev++) {
+		for (ev = PMC_EV_SOFT_FIRST; (int)ev <= PMC_EV_SOFT_LAST; ev++) {
 			ps = pmc_soft_ev_acquire(ev);
 			if (ps == NULL)
 				continue;
diff --git a/sys/dev/hwpmc/hwpmc_soft.c b/sys/dev/hwpmc/hwpmc_soft.c
index c3d2dec87549..dac361279166 100644
--- a/sys/dev/hwpmc/hwpmc_soft.c
+++ b/sys/dev/hwpmc/hwpmc_soft.c
@@ -116,7 +116,7 @@ soft_allocate_pmc(int cpu, int ri, struct pmc *pm,
 		return (EPERM);
 
 	ev = pm->pm_event;
-	if (ev < PMC_EV_SOFT_FIRST || ev > PMC_EV_SOFT_LAST)
+	if ((int)ev < PMC_EV_SOFT_FIRST || (int)ev > PMC_EV_SOFT_LAST)
 		return (EINVAL);
 
 	/* Check if event is registered. */