diff --git a/exec.c b/exec.c
index 983c0db3f7..e8f1eeb750 100644
--- a/exec.c
+++ b/exec.c
@@ -4253,7 +4253,7 @@ void stw_phys(target_phys_addr_t addr, uint32_t val)
 void stq_phys(target_phys_addr_t addr, uint64_t val)
 {
     val = tswap64(val);
-    cpu_physical_memory_write(addr, (const uint8_t *)&val, 8);
+    cpu_physical_memory_write(addr, &val, 8);
 }
 
 /* virtual memory access for debug (includes writing to ROM) */