diff --git a/include/drivers/ufs.h b/include/drivers/ufs.h
index a10cd80..574c4ea 100644
--- a/include/drivers/ufs.h
+++ b/include/drivers/ufs.h
@@ -82,7 +82,7 @@
 #define UECDME				0x48
 /* UTP Transfer Request Interrupt Aggregation Control Register */
 #define UTRIACR				0x4C
-#define UTRIACR_IAEN			(1 << 31)
+#define UTRIACR_IAEN			(1U << 31)
 #define UTRIACR_IAPWEN			(1 << 24)
 #define UTRIACR_IASB			(1 << 20)
 #define UTRIACR_CTR			(1 << 16)