diff --git a/arch/arm/src/sama5/sam_udphs.c b/arch/arm/src/sama5/sam_udphs.c
index 93600f3b8ff..fedcd0b6559 100644
--- a/arch/arm/src/sama5/sam_udphs.c
+++ b/arch/arm/src/sama5/sam_udphs.c
@@ -790,7 +790,7 @@ static void sam_putreg(uint32_t regval, uintptr_t regaddr)
   putreg32(regval, regaddr);
 }
 #else
-static inline void sam_putreg(uint32_t regval, uint32_t regaddr)
+static inline void sam_putreg(uint32_t regval, uintptr_t regaddr)
 {
   putreg32(regval, regaddr);
 }