diff --git a/piv/pcsc_freebsd.go b/piv/pcsc_freebsd.go
index 54e6d13..90350e1 100644
--- a/piv/pcsc_freebsd.go
+++ b/piv/pcsc_freebsd.go
@@ -26,5 +26,5 @@ func scCheck(rc C.long) error {
 }
 
 func isRCNoReaders(rc C.long) bool {
-	return rc == 0x8010002E
+	return uint32(rc) == 0x8010002E
 }