diff --git a/lib/xlat_tables/aarch32/nonlpae_tables.c b/lib/xlat_tables/aarch32/nonlpae_tables.c
index eca3be3..e31f9d8 100644
--- a/lib/xlat_tables/aarch32/nonlpae_tables.c
+++ b/lib/xlat_tables/aarch32/nonlpae_tables.c
@@ -122,8 +122,8 @@
 #define DACR_DOMAIN_PERM_CLIENT		0x1
 #define DACR_DOMAIN_PERM_MANAGER	0x3
 
-#define NUM_1MB_IN_4GB		(1 << 12)
-#define NUM_4K_IN_1MB		(1 << 8)
+#define NUM_1MB_IN_4GB		(1U << 12)
+#define NUM_4K_IN_1MB		(1U << 8)
 
 #define ONE_MB_SHIFT		20