diff --git a/sys/ofed/include/linux/bitops.h b/sys/ofed/include/linux/bitops.h
index 4ada7089b98..bac688af5e7 100644
--- a/sys/ofed/include/linux/bitops.h
+++ b/sys/ofed/include/linux/bitops.h
@@ -286,14 +286,14 @@ bitmap_empty(unsigned long *addr, int size)
 #define	NBLONG	(NBBY * sizeof(long))
 
 #define	set_bit(i, a)							\
-    atomic_set_long(&((volatile long *)(a))[(i)/NBLONG], 1 << (i) % NBLONG)
+    atomic_set_long(&((volatile long *)(a))[(i)/NBLONG], 1UL << (i) % NBLONG)
 
 #define	clear_bit(i, a)							\
-    atomic_clear_long(&((volatile long *)(a))[(i)/NBLONG], 1 << (i) % NBLONG)
+    atomic_clear_long(&((volatile long *)(a))[(i)/NBLONG], 1UL << (i) % NBLONG)
 
 #define	test_bit(i, a)							\
     !!(atomic_load_acq_long(&((volatile long *)(a))[(i)/NBLONG]) &	\
-    1 << ((i) % NBLONG))
+    1UL << ((i) % NBLONG))
 
 static inline long
 test_and_clear_bit(long bit, long *var)