diff --git a/exec.c b/exec.c
index 9cbba6adcd..90b47cde7b 100644
--- a/exec.c
+++ b/exec.c
@@ -2747,7 +2747,7 @@ static MemTxResult subpage_read(void *opaque, hwaddr addr, uint64_t *data,
         *data = lduw_p(buf);
         return MEMTX_OK;
     case 4:
-        *data = ldl_p(buf);
+        *data = (uint32_t)ldl_p(buf);
         return MEMTX_OK;
     case 8:
         *data = ldq_p(buf);