diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 208df7b44e90..d7ac6b9be18e 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -170,7 +170,7 @@
 #define AUDIT_MAX_KEY_LEN  256
 #define AUDIT_BITMASK_SIZE 64
 #define AUDIT_WORD(nr) ((__u32)((nr)/32))
-#define AUDIT_BIT(nr)  (1 << ((nr) - AUDIT_WORD(nr)*32))
+#define AUDIT_BIT(nr)  (1U << ((nr) - AUDIT_WORD(nr)*32))
 
 #define AUDIT_SYSCALL_CLASSES 16
 #define AUDIT_CLASS_DIR_WRITE 0