diff --git a/sys/mips/atheros/if_arge.c b/sys/mips/atheros/if_arge.c
index 00b92418bd3..654f68a531c 100644
--- a/sys/mips/atheros/if_arge.c
+++ b/sys/mips/atheros/if_arge.c
@@ -2492,7 +2492,7 @@ arge_intr(void *arg)
 
 #ifdef	ARGE_DEBUG
 	for (i = 0; i < 32; i++) {
-		if (status & (1 << i)) {
+		if (status & (1U << i)) {
 			sc->intr_stats.count[i]++;
 		}
 	}