diff --git a/src/include/device/dram/ddr3.h b/src/include/device/dram/ddr3.h
index 10924a2..295ea25 100644
--- a/src/include/device/dram/ddr3.h
+++ b/src/include/device/dram/ddr3.h
@@ -186,7 +186,7 @@
  *
  * Should be useful when doing an MRS to the DIMM
  */
-static inline u32 volatile_read(volatile u32 addr)
+static inline u32 volatile_read(volatile uintptr_t addr)
 {
 	volatile u32 result;
 	result = *(volatile u32 *)addr;