diff --git a/include/lib/aarch32/arch.h b/include/lib/aarch32/arch.h
index f9ed56e..be94887 100644
--- a/include/lib/aarch32/arch.h
+++ b/include/lib/aarch32/arch.h
@@ -576,7 +576,7 @@
 #define PAR_F_SHIFT	U(0)
 #define PAR_F_MASK	ULL(0x1)
 #define PAR_ADDR_SHIFT	U(12)
-#define PAR_ADDR_MASK	(BIT(40) - ULL(1)) /* 40-bits-wide page address */
+#define PAR_ADDR_MASK	(BIT_64(40) - ULL(1)) /* 40-bits-wide page address */
 
 /*******************************************************************************
  * Definitions for system register interface to AMU for ARMv8.4 onwards