diff --git a/src/mainboard/emulation/qemu-aarch64/cbmem.c b/src/mainboard/emulation/qemu-aarch64/cbmem.c
index 6b6ac72..389ff4e 100644
--- a/src/mainboard/emulation/qemu-aarch64/cbmem.c
+++ b/src/mainboard/emulation/qemu-aarch64/cbmem.c
@@ -4,7 +4,7 @@
 #include <ramdetect.h>
 #include <symbols.h>
 
-void *cbmem_top_chipset(void)
+uintptr_t cbmem_top_chipset(void)
 {
-	return _dram + (probe_ramsize((uintptr_t)_dram, CONFIG_DRAM_SIZE_MB) * MiB);
+	return (uintptr_t)_dram + (probe_ramsize((uintptr_t)_dram, CONFIG_DRAM_SIZE_MB) * MiB);
 }